Other Things Being Equal, the Voting Rates for Men and Women

Other things being equal, the voting rates for men and women ______.

A) had been roughly equal for decades but women are now more likely to vote
B) vary depending on the salient issues in a given election
C) depend on context as greater percentages of men vote in midterm elections, while greater percentages of women vote in presidential elections
D) are heavily conditioned by race and region so it is hard to draw clear conclusions from the data