Which of the following revolutionary groups’ members assassinated Assistant Superintendent of Police John Saunders in 1927?
           

Correct option is B

Hindustan Republican Association revolutionary groups’ members assassinated Assistant Superintendent of Police John Saunders in 1927.
 The Hindustan Republican Association (HRA), another well-known organization, was founded in 1924 by revolutionaries Chandrashekhar Azad, Bhagat Singh, and Sukhdev Thapar.
 The Hindustan Republican Association (HRA) was established in Kanpur
 Later it was reconstructed and named as Hindustan Socialist Republican Association (HSRA) in 1928.