Answer:
The correct answer is letter "A": core rigidity.
Explanation:
A competitive advantage is an advantage that a firm has over its competitors. It could be a comparative advantage if the company has a lower opportunity cost in its production process and a differential advantage if the product manufactured by the company has a unique feature.
Seth's Computer Repair big failure relies on not listening to its internal consumers: its employees. Employers can provide companies valuable feedback that could determine the course of the business. For that reason, in front of the entry of a new competitor in the market, Seth's lost part of its customers since they kept applying the same rigid, obsolete method that worked previously.