The rain comes . . . . . . . the clouds.

The correct answer is C: from

First, let's define the word "from". "From" is a preposition indicating origin or source.

The sentence describes the origin of rain. Rain originates in, or comes from, clouds. Therefore, "from" accurately describes the relationship between rain and clouds.

Let's look at why the other options are incorrect:

A: in - Rain is not *in* the clouds in the sense of being contained within them like objects in a box. Rain *falls from* the clouds.

B: near - "Near" indicates proximity, but doesn't explain the origin of the rain. Rain is not simply near clouds; it originates from them.

D: under - Rain doesn't come from *under* the clouds. It comes *from* the clouds and falls *down* to the earth.