Which of the following was a major reason the old system of government in china was replaced by a republic in 1911? a. ruthless rule by the last chinese emperor b. lack of a centralized system of government c. too much power in the hands of foreign countries d. cooperation between communist forces and japanese invaders

B is the answer of this question u asked

C. too much power in the hands of foreign countries

Explanation:

The republic of china is a sovereign state in the mainland of the china between the 1912 and the 1945,  prior to the location of the relocation of the tiwain island and was established on Jan 1912 after the Xinhai revolution that overthrew the Qing dynasty. The republic began on 1 Jan 1912, ad it began in the  Wuchang Uprising on Oct 1911 ending the two thousand rule in china.

I'm pretty sure it's c. extremely gradual but not 100% sure though.