A competitive environment where there is strong rivalry among sellers, low entry barriers, strong competition from substitute products, and considerable bargaining leverage on the part of both suppliers and customersSelect one:a$.$is highly conducive to achieving strong product differentiation and high customer loyalty to the company's brand.b$.$offers little ability to build a sustainable competitive advantage.c$.$is competitively unattractive from the standpoint of earning good profits.d$.$offers moderate to good prospects for making a reasonable profit and building a sustainable competitive advantage.