What was the greatest contribution of Ishwar Chand Vidyasagar in the social reforms in India?

The main purpose of Brahmo Samaj for which it was set up are

A. Purify Hinduism and to preach monotheism

B. Criticize social evils, oppose idolatry and emphasize human dignity

C. Both A and B

D. None of the above

Maharishi Dayanand Saraswati was an important Hindu religious scholar, reformer, and founder of the __________

A. Arya Samaj

B. Brahma Samaj

C. Ramakrishna Mission

D. Theosophical society

I. Raja Ram Mohan Roy established the "Calcutta Unitarian Committee".
II. Social Service League was established by Mahadev Govind Ranade.
III. Deccan Education Society was founded by Gopal Krishna Gokhale.
IV. Annie Besant started the Central Hindu School.

Which of the above statement(s) is/are correct with reference to the reformers & leaders of India's Struggle for Independence?

A. I, II & IV

B. I & IV

C. II & III

D. III Only

Where was the Devadasi System prevailed in India?

A. Southern India

B. Northern India

C. East India

D. West India