Addictions professionals are required to maintain ethical boundaries in their relationships with clients. An example of a boundary violation is:

(A) Martha, an addiction professional, started dating a client from a co-worker's group.

(B) Xiang called his client's mother asking to speak the client. The client gave written consent during program enrollment, but has since stopped coming to treatment.

(C) Phil saw a client in the local grocery store. He tried to avoid her, but she waved to him and he waved back.

(D) Simone called her addictions counselor after she got home because she has been evicted from her apartment.