In the Context of Marketing Planning

In the context of marketing planning. why is it vital that the marketing plan be capable of selling itself to top management?

A) Because top managers are responsible for executing the marketing plan.
B) Because top managers must be able to evaluate the performance of the marketing program.
C) Because top managers must be able to clearly communicate the strategy to external stakeholders.
D) Because top managers must decide whether the marketing plan is the best use for the organization's scarce resources.
E) Because top managers are compensated on how well the marketing strategy works.