When looking at the entire industry, the main areas in a company's overall value chain where important differences between a firm's cost and value do not occur are in Group of answer choices a company's external activities, the supplier's part of the industry value chain, and the buyer's ability to integrate backward. a company's own internal activities. a company's own internal activities, the supplier's industry value chain, and the forward channel portion of the industry chain. the supplier's industry value chain. the forward channel portion of the industry chain.