What Does Historian Thomas Laqueur's Research Demonstrate About the History

What does historian Thomas Laqueur's research demonstrate about the history of views of sexed bodies?

A) That ideas and beliefs about men and women shaped the ways people understood sexual anatomy and its function
B) That the understanding of female sexual anatomy has changed drastically in the past three centuries, while ideas about male sexual anatomy have changed very little
C) That the idea of gender was "born" in 1870 with the work of sexologist Havelock Ellis
D) All of the above