A DBT practitioner conveys to the client that their behavior makes sense and is understandable in the context of their lives. This process is:

A) problem solving.
B) validation.
C) contingency management.
D) distress tolerance.

Validation involves acknowledging and accepting a person's feelings, thoughts, behaviors, and internal experiences as understandable within their context or situation. In DBT (Dialectical Behavior Therapy), validation is a crucial component that helps build a trusting relationship between the therapist and the client, and it helps the client feel understood and accepted.