It appears A. and B. took place on the same date, April 19, 1775, but those two were the earliest, and for D., the poem was published on 1781, but it is based on the actions of Paul Revere on April 18, 1775. So, if you mean the poem, A./B. is the answer, but if it the actions, it would be D.
Answer:
cognitive dissonance theory
Explanation:
Cognitive dissonance: In psychology, the term "cognitive dissonance" is often considered as cognitive bias and is described as a phenomenon that generally occurs when an individual tends to hold two or more than two contradictory values, beliefs, ideas or participate in any action that generally goes opposite to one of these three and then he or she experiences psychological stress due to this conflict.
In the question above, the given statement represents the cognitive dissonance theory.