The correct option is B Non-Cooperation Movement
Under the Inland Emigration Act of 1859, plantation workers were not permitted to leave tea gardens without permission. When they heard of the Non-Cooperation Movement, thousands of workers defied the authorities and left for their homes. So, for these workers, freedom meant the right to move freely in and out of the confined spaces of their plantation. They believed that ‘Gandhi Raj’ was about to be established and everyone would be given land in their own villages. They imagined Swaraj to be a time when all their sufferings and troubles would be over. Every time they chanted Gandhi’s name, or acted in the name of Gandhi, or raised slogans demanding for 'Swatantra Bharat', they emotionally related it to an all-India agitation. They identified with a movement that went beyond the limits of their immediate locality.