Killian Finds It Difficult to Initiate Conversations with People He

Killian finds it difficult to initiate conversations with people he doesn't know, and maintains a very small circle of friends. One of his friends mentioned that perhaps something occurred when Killian was younger, and as a result his problems with social skills emerged as an expression of the internal conflict. This view is typical of the ________ model of abnormality.

A) biological
B) diathesis-stress
C) psychoanalytic
D) cognitive-behavioral