According to Person-Centered Theory, a Relationship Between the Client and Therapist

According to person-centered theory, a relationship between the client and therapist in which the therapist demonstrates attitudes of caring, genuineness, emmpathy, positive regard, and understanding is

A) a necessary and sufficient condition for change.
B) a necessary but not sufficient condition for change.
C) neither necessary or sufficient condition for change.
D) sufficient but not necessary condition for change.