A business-level strategy is: a. a marketing and positioning program designed to explain a business to its customers. b. an integrated and coordinated set of commitments and actions the firm uses to gain a competitive advantage by exploiting core competencies in a specific product market. c. the actions the firm takes by selecting and managing a group of different businesses competing in different product markets. d. a set of actions and commitments through which the firm sells its products outside of its domestic market.