What is the chief benefit to the client in cognitive therapy?

These are the options for the question :What is the chief benefit to the client in cognitive therapy?

a. Emotional insight is gained and the client is able to change his emotions towards the conflict. b. The client is able to change maladaptive behaviour to adaptive ones. c. The client is able to replace irrational thoughts with rational ones. d. The client is able to achieve personal growth which leads to understanding oneself

The correct answer is - c. The client is able to replace irrational thoughts with rational ones.