pepsico has a new flavor of soft drink that it wants to test to determine reactions of probable buyers. which of the following test-market characteristics would be least useful to pepsico when testing the new soft drink? a. retailers would be cooperative. b. the city has stable year-round sales of soft drinks. c. testing efforts would not be easily jammed by competitors. d. tourism is a major industry in the area. e. there are research and audit services available.