How does the structure of Mike Kubic's article support the central idea of this claim

Kubic's article consists of three parts. In the first part, he provides the complete account of the witch trials which occurred in 1692. The author depicts how convicted people were actually not guilty of the accusations. In the second part, he focuses on how 100 years later the sweeping execution of the enemies of the revolution in France, well known as "Reign of Terror" followed the similar patterns. In the last part named "Public Scares in the USA", Kubic somehow summarizes the culmination of these historic demagoguery adding the examples of resettlement of Japanese Americans, First and the Second Red Scares in 20th century America and to sump up he deals with the prevalence of prejudice that remained on the agenda even after two and half century later.    

Explanation:

i think the answer is either c or d

im thinking d might make more sense though

sorry if im wrong

d understatement