Correct answer: C. Indigo
Explanation: The Champaran Satyagraha was a farmers’ movement connected with indigo cultivation. British planters forced many peasants in Champaran, Bihar, to grow indigo instead of using their land freely for food crops. This system placed a heavy burden on cultivators and caused economic hardship. Mahatma Gandhi went to Champaran in 1917 and supported the peasants’ complaints, making this one of the earliest major satyagrahas led by him in India.
To solve the question, identify the crop at the centre of the farmers’ protest. Cotton is linked with textile production, jute with fibre, and tea with plantation farming, but none of these was the main issue at Champaran. The correct choice is C, Indigo, because the movement opposed the coercive conditions imposed on indigo-growing peasants. It is useful to remember Champaran with indigo, Kheda with revenue relief, and Ahmedabad with mill workers.