The correct option is C 12 March 1930
On 12 March 1930, Gandhiji decided to march from Sabarmati Ashram with his supporters to Dandi, a small village on the Gujarat seacoast. It was a part of the Civil Disobedience Movement, which he launched with the full support of the Indian National Congress and the people of India. The objective of the movement was to refuse to obey certain laws, demands, orders, or commands given by the British government. The march came to be known as "Dandi March" or "Dandi Yatra".