What Is the Relationship Between Mean Income, Educational Degree, and Gender

What is the relationship between mean income, educational degree, and gender?

A) The higher your level of education, the higher your income will likely be; at most levels of education, men's and women's income are equal or nearly equal.
B) The higher your level of education, the higher your income will likely be, and men at all levels of education earn more than equally educated women.
C) The higher your level of education, the higher your income will likely be; and only men at lower levels of education earn more than equally educated women.
D) The higher your level of education, the higher your income will likely be; and only men at higher levels of education earn more than equally educated women.