Fred Always Tries to Understand What Others Are Going Through

Fred always tries to understand what others are going through. He does his best to identify with other people's experiences, regardless of whether or not he's experienced what they're going through himself. When he passes someone who looks sad, he feels sad himself. This demonstrates one of the important attributes of a therapist that Carl Rogers identified. What is it?

A) genuineness
B) the empty-chair technique
C) unconditional positive regard
D) empathy
E) disdain