Correct Option: B

The Black Hole of Calcutta was a small dungeon in the old Fort William in Calcutta, India, where troops of the Nawab of Bengal, Siraj ud-Daulah, held British prisoners of war after the capture of the fort on 20 June 1756. It led to the death of 123 prisoners from suffocation, heat exhaustion and crushing. The incident became a cause célèbre in the idealization of British imperialism in India.