3. Which of the following statements is correct? A. A cost-based approach to pricing is appropriate when a company sells differentiated product, while a market-based approach to pricing is appropriate when a company sells an undifferentiated product. B. A cost-based approach to pricing is appropriate when a company sells undifferentiated product, while a market-based approach to pricing is appropriate when a company sells a differentiated product. C. A cost-based approach to pricing is appropriate when a company sells undifferentiated product or a differentiated product. D. A market-based approach to pricing is appropriate when a company se undifferentiated product or a differentiated product