First, you should study the openings posted in the local newspapers-subscribe to all of them if possible, or read it at the public library.

Question

what correction should be made?

a)replace you with one
b)replace you with they
c)insert a comma after openings
d)replace it with them
e)no correction

Answer 1

One of the corrections needed is not listed. It should read like this:

First, you should study the openings posted in the local newspapers. Subscribe to all of them if possible, or read them at the public library.

Answer 2

I am not sure