When Comparing Male-Dominated and Female-Dominated Positions in the Same Fields

When comparing male-dominated and female-dominated positions in the same fields,

A) those positions often require similar skills, interests, abilities, and work time commitments.
B) laws often prevent men from entering the female-dominated fields so as to protect jobs held by women.
C) because they are off in the summer, elementary school teachers spend considerably less time teaching than university professors.
D) There is no longer any such thing as a male-dominated position.