Which of the following is prepared to ascertain the trader's capital under incomplete records?

The correct answer is the statement of affairs.
The statement of affairs is a financial statement prepared to determine the trader's capital when complete records are not available. It is used in situations where a business does not keep detailed records of its transactions.
Statement of affairs helps determine the value of assets (what the business owns) and liabilities (what the business owes) at a specific point in time. It shows the overall financial position of the business by listing the assets and liabilities side by side.
By comparing the total value of assets with the total value of liabilities, we can calculate the trader's capital, which represents the difference between the two. It provides an estimate of the business owner's investment or equity in the business.
Since incomplete records lack a detailed record of transactions and financial data, the statement of affairs becomes a helpful tool to assess the trader's capital and provide a snapshot of the business's financial health.