You are presented with the quiz "what are the traces of a living thing formed from?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "if fossils of an animal or plant are found in a place then that animal or plant used to live in that place" and "fossils are the remains or traces of once-living organisms". 

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


 

 remains          