Answer:
The correct answer is letter "B": a sufficiently large number of buyers have a lasting preference for its products or services as compared to the offerings of competitors.
Explanation:
A Competitive Advantage is an advantage that a firm has over its rivals. Essentially, a competitive advantage is what allows a company to earn profits through higher sales or margins, and thus creates returns for stakeholders. It is said that competitive advantage is sustainable when it allows a company to have the preference of consumers over long periods setting competitors aside.