Answer:
Letter B is correct. Narrow market, high cost.
Explanation:
Michael Porter developed three competitive strategies defined as offensive and defensive actions that a company can use to remain in a competitive position in the market. Porter's three generic strategies are: Cost, Differentiation and Focus.
The correct option is that The Museum Company uses a competitive strategy of narrow market and high cost.
The company's strategy can be justified by the focus on a restricted market with wealthy customers, which justifies the high cost of the products offered by the company, which are defined as differentiated and special products.