Which of the following is a source of cash receipts?

The answer is based on the concept of cash receipts, which refers to the incoming cash flow that a business receives. Cash received from debtors paying bills is a prime example of a cash receipt because it represents money that the business has earned and is now collecting. When customers pay their outstanding invoices, this transaction increases the company's cash, indicating a positive cash inflow.

In contrast, the other options represent cash outflows rather than inflows. Cash paid for stock, for instance, indicates an expense incurred to acquire inventory, which does not contribute to cash receipts. Similarly, cash paid to creditors involves settling debts, which also results in cash leaving the business instead of entering. Cash paid for fixed assets represents investments in long-term assets, further exemplifying a cash outflow. Thus, the significant distinction lies in recognizing cash receipts as incoming funds that bolster a company's liquidity.