Final answer:
The correct answer is C. profit margin. If a firm can decrease its operating costs, its profit margin will increase.
Step-by-step explanation:
The correct answer is C. profit margin.
Profit margin is a financial metric used to assess a company's profitability. It is calculated by dividing net income by revenue. If a firm is able to decrease its operating costs, its profit margin will increase because the net income will remain the same while the revenue decreases.
For example, if a firm reduces its expenses by negotiating lower lease payments or implementing cost-saving measures, the profit margin will improve because the company is generating the same amount of profit but with lower costs.