Choose the sentence in which the Adjective clause has been correctly used.

The coffee maker that I bought for my wife is expensive.

The correct answer is OPTION 2 :The coffee maker that I bought for my wife is expensive.

An adjective clause is a dependent clause that modifies a noun or pronoun. It begins with a relative pronoun (like who, whom, whose, which, that) or a relative adverb (like when, where, why). It functions like an adjective, providing more information about the noun it modifies. Example: The book that I borrowed was interesting. → "that I borrowed" = adjective clause (modifies "book").

In this sentence, "that I bought for my wife" is an adjective clause that provides additional information about the coffee maker. The relative pronoun "that" introduces the clause, and it correctly modifies "coffee maker" by specifying which coffee maker is being referred to.

 Option 1: "I bought an expensive coffee maker for my wife." No adjective clause — just a simple sentence.

 Option 3: "An expensive coffee maker was bought by me for my wife." Passive voice — no adjective clause.

 Option 4: "My wife was gifted an expensive coffee maker by me."Again, no adjective clause here.