in shallow areas over short periods of time. from the remains of organisms. in underground reservoirs that are relatively cool. by high winds and temperatures.
I gave my students this multiple choice question: Fossil fuels are formed

Only one answer is correct among these 4 choices:
- in shallow areas over short periods of time.
- from the remains of organisms.
- in underground reservoirs that are relatively cool.
- by high winds and temperatures.

Could you tell me which one is correct?

from the remains of organisms.