Answer:
Rationalization
Explanation:
Rationalization is a defense mechanism by which an individual employs to state facts and reasons in a seemingly rational and logical manner to excuse their controversial behavior, or generally unacceptable behaviors.
In this case, Kamal tries to form a defense for smoking by giving reasons such as:
1. Smoking is the only bad thing he does
2. Something must definitely kill a person.
So therefore, logically, his smoking habit can be excused by the doctor. He does this perhaps in order to fight back the feeling of guilt.