Which of the following did Mao Zedong rely on for the Great Leap Forward to succeed?

A. China's trade relations with the West

B. China's huge population

C. the large agricultural output of China

D. the advanced industry of China

B. China's huge population. The central idea behind the Great Leap was that rapid development of China's agricultural and industrial sectors should take place in parallel. The hope was to industrialize by making use of the massive supply of cheap labor and avoid having to import heavy machinery.