Writting to a friend about moving to a city

Sign wet paint when you see this sign, what will you say to other people that is going to sit? a. you must stay away from the area because it is under construction. b. you must not sit on the bench, so just stay away from it. i’m just not sure which one is correct

Electronic cover letters are longer than traditional paper cover letters.

Pronoun clearly shows what is being referred to at specific person place or thing