Final answer:
Mao Zedong was the first leader to put the original idea for a communist state into practice. Therefore, the correct option is 4) Mao Zedong.
Step-by-step explanation:
Mao Zedong was the first leader of a country to put the original idea for a communist state into practice. Under Mao's leadership, the Communist Party seized power in China in 1949 and established the People's Republic of China. Mao developed a distinctive form of Marxism called Maoism, which emphasized the role of the Chinese peasantry in the revolution. He believed that the peasants, with their poverty, ignorance, and combative nature, could bring about communism.