The correct option is C The US came to China’s aid by helping them with army and ammunition.
Between 1937 and 1945, Japan was aggressively trying to gain control in China to establish an imperialistic government. The Chinese government lost its industrial and financial stability. The US came to China’s aid by helping them with army and ammunition. In addition to this, Guomindang and Mao’s army decided to join hands and defeat Japan. In August 1945, the Japanese surrendered to the US. Soon after this, the Guomindang and CCP started fighting each other.