What was the difference between a British colony in Africa and the British sphere of influence in China in the late 1800s?

Great Britain allowed the Chinese to keep a weak government; in Africa, Britain directly controlled all aspects of the colonies' economies and governments.

Great Britain allowed Africans to rule themselves; in China, Britain controlled all aspects of the Chinese government.

Great Britain allowed a strong Chinese government; to remain in power in Africa, Britain directly controlled each colony’s economy and government.

Great Britain exerted economic influence in Africa; in China, Britain directly controlled all aspects of the economy.