Zhou and Chen's (2008) FMRI Study Recorded the Brain Responses

Zhou and Chen's (2008) fMRI study recorded the brain responses of women when exposed to the smell of male sweat (obtained from watching either neutral or erotic videos) and a steroid derived from male hormones. The results reported:

A) that women knew the difference between the sweat and the steroid.
B) an increase in brain activity for the sexual sweat condition.
C) an increase in brain activity for the steroid but not for the sweat condition.
D) that women perceived the sexual sweat as being especially pleasant or intense.