Gender stereotypes aren't spoken or used by nature, so it's not B. There's not just one person speaking or using the stereotypes, so it's not A. Said person is trying to fight against the stereotypes, and they can't do that if they believe the stereotypes, so not C.
The answer is D because said person is fighting to change multiple people in a society's mind.
Who here is so vile that he doesn't love his country? If there are any, speak, for it is he whom I have offended. I will pause for a reply. None, Brutus, none.