One Explanation Proposed in Your Textbook for Why Girls No

One explanation proposed in your textbook for why girls no longer have lower math scores in high school and college is

A) there have been efforts to encourage girls to pursue mathematics generally and to take more math courses specifically.
B) girls are likely to take easier math courses than boys.
C) boys have lost confidence in their math skills.
D) the left hemisphere of the brain matures more rapidly in girls than in boys.