In which of the following prison Pt. Ram Prasad Bismal was hanged?

The correct answer is (c) Gorakhpur.

Pt. Ram Prasad Bismil was hanged in Gorakhpur Jail on December 19, 1927. He was a freedom fighter who was involved in the Kakori train robbery. The robbery was carried out on August 9, 1925, to fund the activities of the Hindustan Republican Association. Bismil was arrested and tried for the robbery. He was sentenced to death and hanged in Gorakhpur Jail.

Gonda, Faizabad, and Varanasi are all cities in Uttar Pradesh, India. However, Bismil was hanged in Gorakhpur Jail.