Correct Option: A. ascertain the contribution of each department to the organization Detailed Explanation: When a business organization prepares departmental accounts, the primary goal is to evaluate the performance and contribution of each department to the overall success of the organization. Here’s a step-by-step breakdown of why option A is the correct answer:

1. Understanding Departmental Accounts:
2. Departmental accounts are financial statements that provide detailed information about the revenues, expenses, and profitability of each department within an organization. This allows management to assess how well each department is performing financially.
3. Contribution Analysis:
4. By preparing these accounts, a business can ascertain the contribution of each department. This means determining how much profit each department generates and how its operations impact the overall financial health of the organization. For example, if the sales department is generating significant revenue but the production department has high costs, management can identify these issues and make informed decisions.
5. Performance Measurement:
6. Departmental accounts help in measuring performance against budgets or previous periods. This allows management to identify which departments are performing well and which are underperforming, enabling targeted strategies for improvement.
7. Resource Allocation:
8. Understanding the contribution of each department aids in effective resource allocation. If one department is consistently profitable while another is not, management can decide to allocate more resources to the successful department or investigate the issues in the underperforming one.
9. Strategic Planning:
10. The insights gained from departmental accounts can inform strategic planning. For instance, if a particular department shows potential for growth, the organization might decide to invest more in that area.

Why the Other Options Are Incorrect:

• Option B: ascertain interdepartmental transfer:
• While departmental accounts may provide some information about interdepartmental transfers (such as costs or revenues shared between departments), this is not their primary purpose. The main focus is on evaluating the performance and contribution of each department rather than just tracking transfers.
• Option C: build other branches:
• This option suggests that the purpose of departmental accounts is to facilitate the expansion of the organization by building other branches. However, departmental accounts are primarily concerned with internal performance measurement rather than external growth strategies. While insights from departmental accounts might inform decisions about expansion, this is not their main function.
• Option D: know the number of departments in the organization:
• This option implies that the purpose of departmental accounts is to simply count the number of departments. While it is true that departmental accounts will reflect the existence of various departments, the primary goal is to analyze their financial performance, not just to enumerate them.

Summary of Key Points:

• Departmental accounts are essential for evaluating the financial performance of each department.
• They help ascertain the contribution of each department to the overall profitability of the organization.
• Insights from these accounts guide resource allocation and strategic planning.
• The primary focus is on performance measurement, not on interdepartmental transfers, expansion, or counting departments.

By understanding these concepts, students can appreciate the importance of departmental accounts in financial accounting and their role in effective business management.