In February 1922, Mahatma Gandhi decided to withdraw from the Non-Cooperation Movement. He felt the movement was turning violent in many places and satyagrahis needed to be properly trained before they would be ready for mass struggles. Within the Congress, some leaders were by now tired of mass struggles and wanted to participate in elections to the provincial councils that had been set up by the Government of India Act of 1919. They felt that it was important to oppose British policies within the councils, argue for reform and also demonstrate that these councils were not truly democratic. C.R. Das and Motilal Nehru formed the Swaraj Party within Congress to argue for a return to council politics. Younger leaders like Jawaharlal Nehru and Subhas Chandra Bose pressed for more radical mass agitation and for full independence. On 31 January 1930, he sent a letter to Viceroy Irwin starting eleven demands. Some of these were of general interest, others were specific demands of different classes, from industrialists to peasants. The idea was to make the demands wide-ranging so that all classes within Indian society identify with them and everyone could be brought together in a united campaign. The most stirring of all was the demand to abolish the salt tax. Salt was something consumed by the rich and the poor alike and it was one of the most essential items of food. The tax on salt and the government monopoly over its production, Mahatma Gandhi declared, revealed the most oppressive face of British rule.

Which of the following options was the reason for the suspension of the Non-cooperation Movement?