IN: Which person is they?
Software gives more profit over hardware since they have little cost associated with selling more.
OUT: Software

IN: Which person is it?
The plane shot the rocket at the target, then it blew up.
OUT: the target

IN: Which person is he?
Coach Jay provided instruction to his son on how to eat healthy so that he can live longer.
OUT: his son

IN: Which person is he?
Derrick begged his boss for a raise but he did not give one.
OUT:
his boss