Complex society first developed in China

Question

Responses
A in central China along the edges of the Taklamakan Desert.in central China along the edges of the Taklamakan Desert.
B in the southwest as Aryans migrated from northern India into East Asia.in the southwest as Aryans migrated from northern India into East Asia.
C along China's east coast due to the fertile soil found along the Yellow River and the Yangtzi River.along China's east coast due to the fertile soil found along the Yellow River and the Yangtzi River.
D along the southernmost border of China due to the warm climate and location along the Pacific Ocean.

Answer 1

C along China's east coast due to the fertile soil found along the Yellow River and the Yangtzi River.