Final answer:
The nurse's best action when a client demonstrates transference is to help the client clarify the meaning of the current nurse-client relationship.
Step-by-step explanation:
The nurse's best action when a client demonstrates transference is to help the client clarify the meaning of the current nurse-client relationship. Transference refers to when a client unconsciously transfers feelings and emotions from past relationships onto the nurse. By helping the client understand and make sense of these emotions, the nurse can establish trust and promote a therapeutic relationship.