The Primary Difference Between a Boundary Crossing and a Boundary

The primary difference between a boundary crossing and a boundary violation is:

A) everyone agrees when a boundary has been violated, whereas it is hard to reach agreement as to whether a boundary has been crossed.
B) a violation involves a sexual relationship.
C) a crossing occurs in almost every counseling session, while violations are less frequent.
D) in a crossing, a boundary is shifted to meet the needs of the counselor, making sure the client is not harmed in the process.
E) a violation involves a serious breach of the code of ethics that results in a client being harmed.