The Purpose of the Qing System Known as "Dyarchy" Was

The purpose of the Qing system known as "dyarchy" was

A) to maintain the Chinese exclusion from Manchu rule in China.
B) to assure the isolation of the Chinese from the Manchus in China.
C) a mechanism for the sharing of administrative positions by Manchus and Chinese.
D) to assure the Manchu administrative dictatorship of China.
E) to keep northern and southern China balanced politically.