As a rule when the collective impact of the five competitive forces is moderate to weak?
a. industry members have a very strong incentive to try to strongly differentiate their product offerings and create high degrees of customer loyalty for their brands. b. the greater the number of industry key success factors. c. the more scattered are the strategic groups on the industry's strategic group map. d. the easier it is for industry members to earn good profits and a nice return on investment. the weaker are the industry's driving forces.