Answer:
The correct answer is letter "A": sustainable competitive.
Step-by-step explanation:
Companies direct all their efforts to create a sustainable and competitive advantage. It represents what makes the firm different from its competitors and what could lead it to success. Competitive advantage could be based on producing at lower opportunity costs (comparative advantage) or manufacturing a good with unique characteristics (differential advantage). The longer the company can manage its strategy over time (sustainability) the most efficient the organization should become.