Correct Option: C. Expression Detailed Explanation:

1. Understanding Libel:
2. Libel refers to a false statement made in written form that damages a person's reputation. It is a form of defamation, which can lead to legal consequences for the person who made the statement. The law of libel is designed to protect individuals from false and damaging statements while balancing this protection with the right to free speech.
3. Freedom of Expression:
4. Freedom of expression is a fundamental human right that allows individuals to express their thoughts, opinions, and beliefs without fear of government retaliation or censorship. However, this right is not absolute. It is subject to certain limitations, including laws against libel, which aim to protect individuals from false and harmful statements.
5. Why Option C is Correct:
6. The law of libel specifically limits a citizen's right to freedom of expression because it places restrictions on what individuals can say or write about others. If someone makes a statement that is deemed libelous, they can be held legally accountable, which means that their freedom to express that particular statement is curtailed. Thus, the law of libel directly impacts the scope of freedom of expression.

Analysis of Other Options:

• Option A: Movement:
• The right to movement refers to the ability of individuals to travel freely within their country and to leave and return to their country. Libel laws do not restrict this right; therefore, this option is incorrect.
• Option B: Association:
• The right to association allows individuals to join groups, organizations, or gatherings. Libel laws do not impose restrictions on whom individuals can associate with; thus, this option is also incorrect.
• Option D: Worship:
• The right to worship pertains to the freedom of individuals to practice their religion or beliefs. Libel laws do not affect this right, making this option incorrect as well.

Summary of Key Points:

• Libel is a form of defamation that can limit freedom of expression.
• Freedom of expression is a fundamental right but is subject to legal limitations, including libel laws.
• The law of libel protects individuals from false statements that could harm their reputation.
• Other rights such as movement, association, and worship are not directly impacted by libel laws.

This understanding of libel and its implications on freedom of expression is crucial for grasping the balance between protecting individual reputations and upholding the right to free speech.