Examination of the Percentage of Ads Since the 1950s Showing

Examination of the percentage of ads since the 1950s showing people in various stages of undress indicates that

A) women are more likely to be shown undressed,while the percentage has stayed stable for men.
B) men are more likely to be shown undressed,while the percentage has stayed stable for women.
C) both sexes are more likely to be shown in some state of undress.
D) no changes in the state of undress have occurred since the 1950s; all changes were made earlier.