Why has the gender pay gap continued?

Maybe because certain jobs get more money than others and those particular jobs are generally performed by men. When people hire people for jobs like Firefighter, Police, Builder stuff like that we think of men. Jobs like Secretary, Librarian, and Teacher we think of women. The Jobs that cause you to get your hands dirty tend to pay more and are generally performed by males.

c) women should home the rights as men.

this is a good question! i'll do some research and come back when i have the answer!