The correct option is B Chauri-Chaura incident
Non-Cooperation movement was organized by Mahatma Gandhi In 1920 after the Jallianwala Bagh Massacre. It was aimed to resist British rule in India through nonviolent means by refusing to buy British goods, adopt the use of local handicrafts, etc. But a clash took place at Chauri Chaura, a small town in Uttar Pradesh. A police officer had beaten some volunteers picketing a liquor shop. The mob set fire to the police chowki with some 22 policemen inside it. Gandhiji was disappointed that the revolt had lost its non-violent nature and hence decided to withdraw it.