What was the context of H. T. johnson's poem "the black man's burden"?

A. His poem was written to remind imperialist countries of their esponsibility toward their colonies.

B. His poem was written as a sequel to chamberlain's speech to reiterate the benefits of imperialism.

C. His poem was written to inspire enslaved people to rise up aganist thei imperialist oppressors

D. His poem was written to criticize imperialist practices and as a negative response to kipling's poem.