Gillen assumes that people's perception of one's attractiveness is sex-related, and is not sex-related, but the test result of his hypothesis indicated that ______. A.sex plays a major role in people's perception of one's attractiveness B.sex does not influence people' s perception of one's attractiveness C.both sex and other elements play a role in one's perception of attractiveness D.elements other than sex play a role in people's perception of attractiveness