I figured it'd be A, because its letting off a lot of imagery. Correct me if I'm wrong.
Mowing is a machine that you push with your arms on grass and the mower cuts the grass, so basically it cuts the grass so its not really long.
I think this is what you wanted, please describe the question more, thank you.
Answer:
A heading to separate content about the modem and ancient worlds
Most of the time, you'll want affect as a verb meaning to influence something and effect for the something that was influenced. The difference between affect and effect is so slippery that people have started using "impact" as a verb instead. Don't be one of them!
