Which sentence correctly uses the possessive form ‘its’ rather than the contraction ‘it’s’?

Explanation

‘Its’ (without an apostrophe) is the possessive form of ‘it,’ showing ownership, while ‘it’s’ (with an apostrophe) is a contraction meaning ‘it is’ or ‘it has.’ Since the sentence means the tail belonging to the dog, the possessive form ‘its’ is correct, and inserting an apostrophe would incorrectly turn the sentence into ‘the dog wagged it is tail.’ Explore more English MCQs on mcqstutor to keep practicing.