The biggest factors that distinguish one competitive strategy from another are$\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$A$.$choosing between $(1)$ a market target that is either broad or narrow, and $(2)$ whether the company should pursue a competitive advantage linked to lower costs or product differentiation B$.$developing a better credit rating than rivals C$.$assembling a wide portfolio of company resources, competitive capabilities, and core competencies D$.$a customer value proposition, profit formula, and collection of valuable resources E$.$striving for a high degree of customer loyalty to the company's brand