Answer:
B.biblical allusion
Step-by-step explanation:
The literal meaning of an allusion is a device that stimulates ideas, associations and information in the reader's mind with the help of a few words that refer to a common phrase, in other words a quotation, reference or mention, indirect and brief on something or someone. It also depends on what the reader understands the hidden meaning behind the words, if he is familiar with the related phrase. Biblical allusions definition is the same except that these references to the reader are from the Holy Bible.
In this case, Garrison explaining the atrocities that enslavement causes an allusion to the atrocities that were practiced in Babylon. This allusion is made to a part of the Bible that shows that God wanted the righteous to leave Babylon, where Garrison shows that God also wanted righteous people to abandon slavery.