Correct Answer: (a) Champaran
Solution:Champaran Satyagraha of 1917 was the first Civil Disobedience Movement led by Gandhiji in India. In 1917, in the Champaran of Bihar, farmers were protesting against having to grow indigo with barely any payment for it from British. On the invitation of Raj Kumar Shukla, Gandhiji went there and started non-violent protest against this, which eventually led to acceptance of the demands of farmers. This was the first victory of Satyagraha in India.