In a 2003 Study Looking at Histocompatibility Complex Genes, Symmetry

In a 2003 study looking at histocompatibility complex genes, symmetry and body scent attractiveness in men and women researchers asked 200 males and females to provide a blood sample to assess their major histocompatibility complex (MHC) gene, then to sleep a new clean T-shirt for two nights. Researchers also took photos of the males and females to document left- and right-side body symmetry. When the participants were asked about attractiveness, their answers indicated that the:

A) women who were using a birth control and in the most fertile part of their menstrual cycle preferred asymmetrical men's scent over symmetrical men's scent.
B) women who were not using a birth control, but were in the most fertile part of their menstrual cycle, preferred asymmetrical men's scent over symmetrical men's scent.
C) women who were using a birth control and in the most fertile part of their menstrual cycle preferred symmetrical men's scent over asymmetrical men's scent.
D) women who were not using a birth control, and were in the most fertile part of their menstrual cycle, preferred symmetrical men's scent over asymmetrical men's scent.