Q. Which of the following periods can be considered as the era of mass revolution?
(a) 1856-1885 A.D.
(b) 1757-1857 A.D.
(c) 1920-1947 A.D.
(d) 1901-1919 A.D.
Ans: (c) 1920-1947 A.D.
Explanation: The period that can be considered as the era of mass revolution is option (c) 1920-1947 A.D. This period witnessed several significant movements and uprisings in the Indian National Movement against British colonial rule. It was characterized by widespread participation of the masses, including farmers, workers, students, women, and various sections of society. The Non-Cooperation Movement (1920-1922), Civil Disobedience Movement (1930-1934), and Quit India Movement (1942) were some of the major campaigns during this era where large-scale public involvement and protests took place, reflecting the spirit of mass revolution.