You are presented with the quiz "For men, orgasm occurs when climax causes muscles to contract and release what?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "ejaculation occurs when muscle contractions propel sperm from the epididymes" and "for men, orgasm generally climaxes in the ejaculation of semen, which contains millions of sperm". 

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


 

        ejaculate   