Which statements regarding the differences between the Osgood-Schramm mass communication model and the interpersonal communication model are correct?

A. The mass communication model specifies feedback, whereas in interpersonal communication there is no clearly defined instance of feedback.
B. The concepts of interpreters, decoding, and encoding do not apply to the mass communication model.
C. Interpersonal communication involves a message, whereas mass communication involves "many identical messages."
D. In contrast to just