From the words or groups of words lettered A to D, chose the word or group of words that best completes the sentence.
That is not your book, it is
A
John's
B
Johns' own
C
for John's
D
John
Verified Correct Answer: A.
Grammar & Contextual Explanation
The apostrophe + "s" ('s) is used to indicate possession. In this context, the sentence implies that the book belongs to John, so "it is John's" is the correct way to show ownership.
Source: Myschool Past Questions Archive (Record #23392)