Carrie is considering several different universities. She wants a university that has a strong pre-med program because she wants to become a doctor. She also wants a university that is small. Furthermore, Carries doesn't want to go too far from her home in Indiana. A university is an example of a heterogeneous shopping product, and Carrie is having difficulty comparing universities because of all of the following EXCEPT . a. the universities considered are all the same b. the prices vary significantly c. the distance from home varies significantly d. the quality of the courses varies significantly