Proponents of Comparable Worth Suggest That Women Are Paid Less

Proponents of comparable worth suggest that women are paid less than men because:

A) women are less likely to have graduate degrees.
B) women are more likely to need to take time off to raise children.
C) the market is biased and artificially sets compensation for female-dominated jobs lower than male-dominated jobs.
D) men are more likely to be interested in leadership positions.