Select all that apply Which of these are key strategic decisions that top-level managers must make in crafting a company's diversification strategy? Multiple select question. seeking buyers for the company's extra business units so they can pare operations down to one core business taking action to improve the collective performance of all of the company's businesses choosing new industries to enter and deciding how to enter those industries investing the company's resources into the most attractive business units finding ways to leverage cross-business value chain relationships into competitive advantage