Choose the sentence which has an Adjective Clause:-

The correct answer is Option (3) → He is the man whom we all respect.

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

Adjective clause:

• An adjective clause describes a noun or pronoun, like an adjective.
• It usually begins with a relative pronoun: who, whom, whose, which, that.
• This sentence: "whom we all respect" describes the noun man, telling us which man is meant.

Why the Other Options are Incorrect?

Option 1: What he said, was true. — Incorrect. "What he said" is the subject of "was", so it is a noun clause.

Option 2: Life is what we make it. — Incorrect. "What we make it" completes the verb "is" (complement), so it is a noun clause.

Option 4: They can stay where they are. — Incorrect. "Where they are" tells the place of staying and modifies the verb, so it is an adverb clause of place.

Contrast: an adjective clause describes a noun ("the man whom we all respect"). A noun clause does the work of a noun ("What he said"), and an adverb clause modifies a verb ("where they are").