Answer the following question given this paragraph: 

A trophic level is a feeding position in a food chain or food web. Most food chains and webs have a maximum of four trophic levels. There is less energy and biomass at higher trophic levels.


Q: Most food chains and webs have a maximum of how many trophic levels?

 Choices:

- 3

- 10

- 6

- 4

A:
4
