Beginning in the Early 1970s, the Significant Increase in the Participation

Beginning in the early 1970s, the significant increase in the participation of women in sports at colleges and universities can be traced in large part to

A) studies by medical researchers showing a direct correlation between women's participation in sports and good mental health.
B) Title IX of the Higher Education Act, passed by Congress in 1972.
C) the popularity and influence of the book Our Bodies, Ourselves.
D) the sex discrimination provision of the 1964 Civil Rights Act.