Miller and Maner (2010)had Male College Students Smell T-Shirts Worn

Miller and Maner (2010) had male college students smell T-shirts worn by women as they slept.Some of the shirts had been worn by the women on the nights closest to ovulation,some on the nights farthest from ovulation,and some had never been worn.The men were asked to rate the pleasantness of the odors of the T-shirts;the results showed that

A) there were no differences in pleasantness ratings across the different shirt conditions.
B) there were differences in pleasantness ratings,with the highest ratings for the shirts of the ovulating women.
C) there were differences in pleasantness ratings,with the highest ratings for the shirts of the females who were not ovulating.