Answer:
c. Cognitive Dissonance Theory
Explanation:
Cognitive dissonance theory: In social psychology, the theory of cognitive dissonance was proposed by an American psychologist named Leon Festinger in 1957. The "cognitive dissonance theory" describes that an individual has an "inner drive" to hold or carry-out all his or her behavior and attitudes in euphony and willing to avoid dissonance or disharmony.
In the question above, the given statement signifies the "cognitive dissonance theory".