Select the correct answer. which sentence has an adjective clause? a. mike rode his bike on mountain trails because he found them challenging. b. gary donated to charity whenever he could. c. liz, who could always make people laugh, was loved by the whole block. d. ever since adam was a little boy, he had his father in the fields.

the answer is c because it has a word that's either who, when , what, where, why, or how, describing information about the thing it's focusing on sorry if that didn't make sense.. but the answer is c

The sentence with an adjective clause is C: Liz, who could always make people laugh, was loved by the whole block.

An adjective clause is a dependent clause that modifies a noun or pronoun. That means that they can't stand alone as a sentence. They usually begin with  words such as that, when, where, who, whom, whose, which, and why.

In option C, "who could always make people laugh" is modifying Liz, it also starts with WHO and it can't stand alone as an independent sentence.