The graph shows a population of green and brown beetles in a grassy area. Over time, more of the brown beetles avoided predators and lived to reproduce. What environmental factor most likely changed from 2015 to 2018?
A
A fire made the blades of grass short.

B
Less rainfall made the grass turn brown.

C
More nutrients made the grass grow quickly.

D
High temperatures made the grass turn green.

C

Explanation:

in the question it says that brown beetles avoid the predators and live to reproduce this means that B,A and D isn't the correct answer in order to reproduce beetles need nutrients  

hope it's correct :)

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