Navin worked very hard to qualify the national level entrance exam. However on the day of exam he went blank and just walked out of the examination hall without attempting the paper. When asked about this by his parents and friends he totally refuses that such a thing took place. Navin's behaviour is an example of:

Denial

The correct answer is Option (1) → Denial

Denial is a defense mechanism where a person refuses to accept reality or facts to avoid dealing with painful emotions or experiences. In this case, Navin walked out of the exam hall without attempting the paper, and when asked, he completely denies that it happened. This is a classic example of denial, where he is unconsciously rejecting the truth to protect himself from distress or embarrassment.