Final answer:
The false statement among the given options is that effective strategic planning should accept the assumptions underlying the current corporate strategy.
Step-by-step explanation:
The false statement among the given options is D) Effective strategic planning should accept the assumptions underlying the current corporate strategy.
Strategic planning involves critically evaluating the assumptions underlying the current corporate strategy. It is important to challenge assumptions and consider alternative strategies in order to improve and adapt the firm's strategy. Accepting the assumptions without question can hinder the firm's ability to respond to changing market conditions and seize new opportunities.