Which of the Following Statements Regarding Menstrual Synchrony Is True

Multiple Choice

Which of the following statements regarding menstrual synchrony is true?

A) Menstrual synchrony was higher for cohabitating lesbian women than for heterosexual women.
B) Menstrual synchrony does not seem to occur for cohabitating lesbian women.
C) Menstrual synchrony is higher in women who are not friends than in women who are friends.
D) Menstrual synchrony has been observed cross-culturally in all women.