Which of the following sentences contains a dependent clause?

A. Kicking and leaping, the three deer behaved like rambunctious rabbits.
B. Jared eagerly climbed into the boxing ring; he was on his back and out for the count in less than ten seconds.
C. Please clear the table and wash the dishes.
D. The red sports car that was parked under the tree belongs to Alan.
My choice is D?

Right

Yes, your choice is correct. Sentence D contains a dependent clause.

In order to determine if a sentence contains a dependent clause, we need to look for a clause (a group of words that contains a subject and a verb) that cannot stand alone as a complete sentence.

In sentence D, "The red sports car that was parked under the tree" is a dependent clause because it cannot function as a complete sentence on its own. It provides additional information about the subject ("The red sports car"), but it needs the rest of the sentence to make sense.