Choose the sentence that contains an adjective clause:

The correct answer is Option (2) → The song which Aditi sang at her cousin’s sangeet is still stuck in my head.

An adjective is a word that describes a noun or a pronoun, for example a tall tree, the food is tasty.

Adjective clause:

A clause is a group of words with its own subject and verb. An adjective clause describes a noun just before it. Here “which Aditi sang at her cousin’s sangeet” has its own subject (Aditi) and verb (sang). It describes “the song”, so it is an adjective clause.

Why the Other Options are Incorrect?

Option 1: Nobody in the class knew why the school bell rang twice. — Incorrect. “Why the school bell rang twice” is a noun clause. It tells what nobody knew.

Option 3: Papa will fix the leaking tap after he comes back from the office. — Incorrect. “After he comes back from the office” is an adverb clause. It tells when Papa will fix the tap.

Option 4: A boy with a broken arm sat in the front row of the hall. — Incorrect. “With a broken arm” has no verb, so it is not a clause. It is an adjective phrase.