In a Landmark Court Case, Now Referred to as the Tarasoff

In a landmark court case, now referred to as the Tarasoff decision, a counselor:

A) had consensual sexual relations with a client during the counseling session.
B) had a sexual relationship with a former client over a year after treatment had concluded.
C) failed to warn a murder victim of potential danger from his client.
D) bartered his counseling services in exchange for free legal advice from the client, who was a practicing attorney.