In which one of the following sentences is the apostrophe used correctly?
AThe cat licked it's paws while the dog watched
BI put the letter back into it's file
CIt's up to you to decide what to do
DThe train began it's journey across country
AThe cat licked it's paws while the dog watched
BI put the letter back into it's file
CIt's up to you to decide what to do
DThe train began it's journey across country