PLEASE HELP!! What is a natural way to control an aphid population?

release ladybugs into habitat
praying mantis
insecticide

I would say that the answer is A, or releasing ladybugs into a habitat.

Explanation:

This is the only "natural" way to control an aphid population. However, please note that as well as ladybugs, praying mantis's also eat aphids. But, the answer choice doesn't describe the option very well, so that is why I say that it is A.

Hope it helps!

it restores trees to areas where they once grew.

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