Final answer:
An increase in accounts receivable suggests that a company earned more revenue than it collected in cash, often due to credit sales. Therefore correct option is C
Step-by-step explanation:
An increase in accounts receivable on a comparative balance sheet indicates that more revenue was earned than cash was collected during the accounting period. This situation occurs when a company makes sales on credit, thus recognizing sales revenue without having received immediate payment. As a result, while revenue increases, cash flow does not rise proportionally until those receivables are collected.