Correct answer: B. Peasants
Explanation: Direct answer: Option B is correct. The Eka Movement was a peasant movement in parts of the United Provinces, especially during the early 1920s. Its central idea was ekta, or unity, among cultivators who faced high rents, illegal dues, harsh collection, and other pressures. The reasoning is: peasants had common economic problems; organizing together gave them greater strength; meetings and pledges expressed resistance to unfair demands. Madari Pasi is commonly associated with mobilising this movement. Option A is wrong because British officials were generally part of the colonial authority being opposed, not the organised group seeking relief. Option B works because peasants were the participants whose unity formed the movement’s base. Option C is wrong because naval officers and sailors belong to a different military context, not the Eka peasant mobilisation. Option D is wrong because indigo planters are associated with indigo cultivation conflicts, not the defining membership of Eka. Memory cue: Eka means unity—remember united peasants and Madari Pasi.