Why does Douglass use allusions to the Declaration of Independence in his speech?

A.
They underscore the need for the North and South to compromise on the issue of slavery.

B.
They make it difficult for his audience to defend slavery when considered in the context of that document.

C.
They make slavery seem to be a necessary evil for the continued independence of the country.

D.
They help Douglass prove he is literate.

B.

They make it difficult for his audience to defend slavery when considered in the context of that document.