A competitive advantage can be based on any of six factors. Which factor below is not one of the six? Select one: a. opportunity b. selection c. service d. quality

The correct answer is: **a. opportunity** **Explanation:** Competitive advantage typically stems from factors directly related to how a company operates and delivers value to its customers. Common factors include: - **Selection:** Offering a wide variety of products or services can attract a broader customer base. - **Service:** Providing excellent customer service can differentiate a company from its competitors. - **Quality:** Maintaining high-quality products or services ensures customer satisfaction and loyalty. **Opportunity**, on the other hand, generally refers to external factors or chances that a company can exploit but is not a direct internal factor that constitutes a competitive advantage.