A dependent clause has a subject and a verb, but cannot be a complete sentence. Which of the two do you think fits that description?
Yes, B is correct.
The dependent clause is: B) That you had.
The dependent clause in this case is B) "That you had." To identify the dependent clause, we need to look for a group of words that contains a subject and a verb, but cannot stand alone as a complete sentence. In option B, "That you had" does not express a complete thought on its own and depends on the rest of the sentence for its meaning.