As a general rule, women
a. are more flexible than men
b. are less flexible than men
c. are as flexible than men
d. are flexible in different ways than men

I believe the answer is: A. are more flexible than men

This happen because of two main reasons. The first one is that women's muscle fiber tend to able to stretch more compared to men.
The second one is that the the muscle composition of men is larger compared to women, which would restrict their range of motion ins some ways.

The answer is A. As a general rule, women tend to be more flexible than men.