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.
If you could give me the options i could answer your question
The answers is problem and solution
"I don't know why he's being so rude, do you know what he said to me? He said, 'I hate being around you.' How rude!" Like that!
