Are Any of the Following Not a Good Reason for Managers

Are any of the following not a good reason for managers to be well grounded in basic research?

A) Do research for themselves.
B) Make competent decisions on whether to make or 'buy' research from researchers outside the firm.
C) Define their own needs and form researchable questions for the specialist.
D) Judge the logic of a research approach.
E) All are good reasons.