Answer:
The imagery Bradbury uses in the line suggests:
The rain destroys the forests but they grow back.
Explanation:
The line we are supposed to analyze is:
<em>A thousand forests had been crushed under the rain and grown up a thousand times to be crushed again.</em>
The first option states the forests are overgrown, but the line makes it clear that the rain keeps on crushing, destroying the forests. Therefore, we can eliminate it.
The second option states the planet is covered with forests. However, for the same reason mentioned above, this is incorrect. The rain does not allow the forests to persist.
The fourth option states that the rain falls nonstop. This information is correct, but it is not the focus of the imagery in the specific line we are analyzing here. The focus is the forests, not the rain.
Thus, the third option is the best one. The forests do grow back. They are crushed again, that's for sure, but somehow they still manage to grow back.