The best choice that would described the underline word in the sentence would be in letter C. Complete Predicate. A complete predicate includes the verb and all the words that tell what happened in the sentence. I hope you are satisfied with my answer and feel free to ask for more
B. You can be used as both. Here is an example. "You said you wanted this bear, so I got it for you." You is used as both a subject and object pronoun.