In the midst of a speech about tsunamis, a speaker notices quizzical expressions on the faces of her listeners. in response, she says, "let me explain that point again to make sure it's clear." when this happens, the speaker is

Most sociologists agree that: a. culture is central in shaping gender roles, but only in preliterate societies. b. biological factors have some influence, but cultural factors are more important determinants of gender roles. c. biological factors are influential in determining gender roles, but only in industrial or complex societies. d. biological factors only explain differences between men and women with regard to aggression and disease. e. there is no difference between the influences of culture or biology on the development of gender roles, as they are unpredictable.