The answer is c I think! I had this question before on one of my test
Mao Zedong was a founding member of the party and rose through its ranks to become its leader and chairman in 1943. The CCP under his leadership emerged victorious in the Chinese Civil War against the Kuomintang, and in 1949 Mao proclaimed the establishment of the People's Republic of China
The territories were very spead out, making it difficult to rule the empire.