Which of the Following Criteria Holds Good for a Priori

Multiple Choice

Which of the following criteria holds good for a priori approach and a post hoc approach?

A) The approach should be used depending on whether the firm is a market leader or follower.
B) The approach should depend on the vulnerability of a research group.
C) The approach should depend on how well the firm knows a market for a particular product class.
D) The approach should depend on the degree to which the product can harm consumers.