Pick from:
(1). harm them.
(2). stink up.
(3). make up.
(4). recovery.
(5). recycling.
(6). eat up.
(7). poop up.
(8). store.

You are presented with the quiz "Organs of waste do what to the waste system?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "organs of excretion make up the excretory system" and "all organisms excrete wastes". So, what's the best answer to the question?
Answer:
(3).