Question

thinking about the monarchs gave lockwood and debrey a new way to look at the locust mystery. instead of focusing on the swarming phases of the locust and trying to explain the disappearance of trillions of locusts spread over a vast area, they looked at the years between outbreaks. maps from the late 1800s pinpointed the locations of the locusts permanent breeding zones in the river valleys of wyoming and montana. a much smaller population of the insects had lived undisturbed in these areas for thousands of years.
how are the river valleys of wyoming and montana similar to the oyamel fir trees in mexico?
both provide places for a type of insect to live.
both have been winter homes to butterflies.
both have been damaged by swarms of locusts.
both contain plants for a type of insect to destroy.

Explanation:

The river valleys of Wyoming and Montana are the permanent breeding - zones for locusts. Oyamel fir trees in Mexico are known to be the winter homes for monarch butterflies. Both are places where a type of insect lives.

Answer:

A. Both provide places for a type of insect to live.