You are presented with the quiz "What can produce eggs inside ovaries of flowers?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "female gametophytes produce eggs inside the ovaries of flowers" and "unlike the unisexual gametophytes of a moss, a fern gametophyte is bisexual". 

So, what's the best answer to the question?


 

    female ferns       