Q. Who among the following wrote the “Gift to Monotheists”?
Answer: A
Notes:
Explanation: Rammohan Roy believed in the modern scientific approach and principles of human dignity and social equality.
He put his faith in monotheism. He wrote Gift to Monotheists (1809) and translated into Bengali the Vedas and the five Upanishads to prove his conviction that ancient Hindu texts support monotheism.
Source: Spectrum

