John's father has 3 boys tim bob and

John

Explanation:

It makes sense as we introduce the sentence with "John's father" and then we add the 2 son's names. It is clear the John is the last name as we are talking about John's father.

hope this helped!!

i think it would be c. or a. i recommend a if it's not a than it's c if it's not c than it's b your welcome : ) sorry if you get it wrong

you need to explain that more, your grammer just needs to be close to perfect.