Which of the Following Definitions of Communication Is (Are) Correct

Which of the following definitions of communication is (are) correct?

A) Unidirectional communication is communication that does not feel reciprocal to the therapist because it is initiated and sustained by the therapist without any apparent response from the client.
B) Bidirectional communication is communication that feels reciprocal to the therapist because at minimum it involves some indication that the client has received the communication.
C) Unidirectional communication is communication that does not feel reciprocal to the therapist because it is initiated and sustained by the therapist with active dismissal or rejection by the client.
D) Bidirectional communication is communication that feels reciprocal to the therapist because at minimum it involves active engagement and response (verbal or nonverbal) from the client.
E) Both answers A and B
F) Both answers C and D