Answer:
cognitive dissonance theory
Explanation:
Cognitive dissonance theory -
It refers to as the condition involved in some conflicts of beliefs , behavior or ideas , is referred to as cognitive dissonance theory .
The condition gives rise to problem and confusion in the state of mind for the thoughts .
The most common example is , people who smokes , and are aware that smoking causes cancer , and hence are in a state of cognitive dissonance .
Hence , from the given scenario of the question ,
The correct answer is cognitive dissonance theory .