The correct option is D Mao Zedong organised long march from Yanan to Kiangsi.
Chiang Kai-Shek succeeded Sun Yat-Sen and exerted military autocracy in China. The Communists who protested against the policy of Ching Kai-Shek were brutally suppressed. Mao Zedong, the communist leader, organised a journey starting from Kiangsi in South China to Yanan in Northwestern China. On 1 October 1949, China officially became the People's Republic of China under Mao's leadership.