Which vest revised sentence 3 to make it more precise

There aren't any sentences to revise.

Explanation:

However, it is possible to explain some things.

First of all, revise means to change something in a text. To revise a sentence it is necessary to focus on the structure of it, meaning that every part must agree with each other. It is also important to focus on language, meaning that  some words or expressions might not be proper for the target audience. Another important stage is spelling, since we avoid typos and mistakes. The sentence structure and punctuation are also important  since the sentence can be incomplete or seem non-logical if this stage is not verified.

for me i cant do homework without music, so, i guess i would say faster with it, than without it. for me at least.

i think it is b. hope this !