Respuesta :
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.
You is the only pronoun that can be used as a subject as well as an aoject
I warned you (obj),but you(sub) didn't listen to me
I warned you (obj),but you(sub) didn't listen to me