What is revision
a) the step in the writing process where you look at your work critically, asking "will my goal be clear to readers"?
b) the step in the writing process when you determine your purpose and audience
c) the step in the writing process when you look closely at language mechanics, word usage, and sentence structure
d)the step in the writing process when you want to get the format set and put paragraph in place, with less of a focus on avoiding errors.

Option A  Will my goal be clear to the users

Explanation:

The term revision means Correction / Editing so that the readers understand what actually the writer is intended to say. The success of any writing depends mainly on the intended meaning and the understood meaning.

It is the responsibility of the writer to make sure that the focus is not diverted anywhere out of the context.

There are chances for the writers to make mistake when the flow of ideas are continuous and they keep writing as it comes. This review phase allows them to delete unwanted or improper words, check for the contents and the flow.