Why Is It the Case That Even Though Girls Are

Why is it the case that even though girls are doing as well in math and science as boys, they are less confident in their abilities in these areas?

A) Parents hold stereotyped views that girls will do less well in math.
B) Teachers give girls lower grades in math and science than they do boys.
C) Parents push girls toward other subjects such as sports.
D) Girls have more test anxiety in math and science than do boys.