In One Study, Men Rated the Scent of T-Shirts Worn

In one study, men rated the scent of t-shirts worn by women three nights in a row. The results indicated that

A) men disliked the smell of dirty t-shirts on men, but not women.
B) men preferred the t-shirt scent if the woman who were ovulating.
C) men preferred the t-shirt scent if the woman was not ovulating..
D) men preferred the t-shirt scent of women who showered regularly.