​Which of the following was a non-violent protest against the British monopoly on salt production in 1930?​

Correct option is C

The correct answer is option (c) Dandi March

The Dandi March, led by Mahatma Gandhi in 1930, was a non-violent protest against the British monopoly on salt production. Gandhi and his followers marched from Sabarmati Ashram to Dandi, a coastal village, to produce salt from seawater, defying the British Salt Act. This act of civil disobedience was a significant part of the Indian independence movement and marked the beginning of the Civil Disobedience Movement.

Information Booster :-

• Khilafat Movement: A protest (1919–1924) to support the Ottoman Caliphate, not related to salt production.
  
• Kheda Satyagraha: A 1918 non-violent protest in Gujarat demanding tax relief for farmers after a famine.
  
• Civil disobedience: A broader movement starting in 1930 to oppose British laws, including the salt laws.