Explanation:

3rd option is correct.
The ‘Black Hole’ event was sensationalized by Holwell. The incident became a cause célèbre in the idealization of British imperialism in India and a subject of controversy. The nawab attacked Calcutta because of the company's failure to stop fortifying the city as a defense against its rivals in anticipation of war (the Seven Years' War, 1756–63).Black Hole Incident is the name given to an event that took place during Nawab sirajuddaula's capture of Calcutta on 20 June 1756. The story of the tragedy is based on the narrative of one person, john zepheniah holwell, the defender of Calcutta.