You are presented with the quiz "What comes out the end of the penis?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "urine is the liquid waste product of the body that is excreted by the urinary system" and "after urination, dry the end of the penis and replace the foreskin". 

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


 

  liquid waste         