Extending credit allows firms to attract customers who are unable or unwilling to pay cash at the time of purchase. In competitive markets, offering favorable credit terms can increase sales volume, improve customer relationships, and enhance market share. While credit sales delay cash inflows and introduce default risk, they can generate higher revenues and profits if managed properly. Financial management texts stress the importance of balancing increased sales against the costs of credit, including collection expenses and bad debt losses. Option C correctly identifies the primary strategic benefit of extending credit in competitive environments.