Once a company has diversified into a collection of related or unrelated businesses and concludes that some strategy adjustments are needed, which one of the following is NOT one of the main strategy options that a company can pursue?

A$.$ multinational diversification

B$.$ restructure the company's business lineup with a combination of divestitures and new acquisitions

C$.$ craft new initiatives designed to build$/$enhance the reputation and image of the company

D$.$ divest some businesses and retrench to a narrower diversification base