Question

In which one of the following sentences is the apostrophe used correctly?

A. The train began it's journey across country.
B. The cat licked it's paws while the dog watched.
C. It's up to you to decide what to do.
D. I put the letter back into it's file.

Answer 1

C because if replaced with it is c is the one that makes sense

Answer 2

the answer is C. it says “It is up to you to decide what to do.”