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. Given these facts, what are the traces of a living thing formed from among the following options:
- remains
 - coral
 - Sediment
 - cellulose
 - organisms
 - coral reef
 - cells
 - Collagen


 

 remains        