Mamie Notices That When She Discusses Her Issues in Therapy

Mamie notices that when she discusses her issues in therapy, her therapist often says, "Okay, now let me make sure I understand. What it sounds like you are saying is that...." Mamie doesn't mind at all because it makes her feel like the therapist is paying attention, actually cares, and even gives her the opportunity to correct the therapist if what he says is not what she meant. Mamie's therapist is using the technique of _____

A) flooding.
B) active listening.
C) transference.
D) unconditional positive regard.