The correct answer is: All of the above.
The Zamindari system was a system of land tenure in India under which a small number of landlords, known as zamindars, held large tracts of land and collected revenue from the peasants who worked the land. The zamindari system was abolished in 1950, but its legacy continues to be felt in Bihar, where many peasants are still poor and landless.
Fair wages for agricultural workers is another major demand of the peasant movements in Bihar. Agricultural workers in Bihar are often paid very low wages, and they often have to work long hours in difficult conditions. The peasant movements are demanding that agricultural workers be paid a fair wage for their work and that they be given better working conditions.
Protection of tribal lands is another major demand of the peasant movements in Bihar. Tribal people in Bihar have been displaced from their land by development projects, and they have also been exploited by landlords and moneylenders. The peasant movements are demanding that the government protect tribal lands and that tribal people be given their rights.
The peasant movements in Bihar are a powerful force for change. They are demanding justice for the poor and the marginalized, and they are working to improve the lives of the people of Bihar.