Correct Option: B. Federal System Detailed Explanation: A federal system of government is often considered the best form of governance for a heterogeneous society, which is characterized by a diverse population with varying ethnic, cultural, religious, and linguistic backgrounds. Here’s why a federal system is particularly effective in such contexts:

1. Decentralization of Power: In a federal system, power is divided between a central authority and various regional or state governments. This decentralization allows different groups within a heterogeneous society to have a degree of self-governance. For instance, states or regions can create laws and policies that reflect the unique needs and preferences of their local populations, which is crucial in a diverse society.
2. Representation of Diverse Interests: Federal systems often have multiple layers of government, which can better represent the interests of various groups. For example, minority groups can have their voices heard at the state or local level, where they may have more influence than at the national level. This representation helps to ensure that all segments of society feel included in the political process.
3. Conflict Resolution: A federal system can provide mechanisms for conflict resolution among different groups. By allowing regions to govern themselves in certain areas, it reduces the likelihood of tensions escalating into larger conflicts. If a particular group feels that its needs are not being met by the central government, it can seek solutions at the regional level.
4. Encouragement of Political Participation: Federal systems often encourage greater political participation among citizens. People may feel more connected to their local governments and more empowered to engage in the political process when they see that their local leaders can make decisions that directly affect their lives.
5. Flexibility and Experimentation: Federal systems allow for policy experimentation. Different states or regions can try out different policies and approaches to governance. Successful policies can be adopted by other regions, while unsuccessful ones can be discarded. This flexibility is particularly beneficial in a heterogeneous society where one-size-fits-all solutions may not work.

Why Other Options Are Weaker:

• A. Quasi-Federal System: A quasi-federal system may not provide the same level of autonomy to regional governments as a full federal system. This can lead to dissatisfaction among diverse groups who feel that their specific needs are not being adequately addressed. The lack of true federalism can result in tensions and conflicts, as local interests may be overridden by central authority.
• C. Confederal System: In a confederal system, the central government has very limited powers, and most authority resides with the individual states or regions. While this might seem beneficial for a heterogeneous society, it can lead to a lack of cohesion and coordination among the states. Confederal systems often struggle with issues like collective action and can be ineffective in addressing national problems, which can exacerbate divisions among diverse groups.
• D. Unitary System: A unitary system centralizes power in a single national government, which can lead to the marginalization of minority groups. In a heterogeneous society, this can create feelings of disenfranchisement and resentment, as local needs and preferences may be ignored in favor of a uniform national policy. This lack of representation can lead to social unrest and conflict.

Revision Summary:

• A federal system allows for decentralization of power, enabling local governance that reflects diverse interests.
• It promotes representation and participation of various groups, reducing the risk of conflict.
• Federal systems encourage policy experimentation, allowing regions to tailor solutions to their unique needs.
• Other systems (quasi-federal, confederal, unitary) may lead to centralization or lack of representation, which can be detrimental in heterogeneous societies.