I believe the correct answer is B. It evokes an image that helps the reader understand the current racial and political situation in Brixton.
This allusion doesn't explain the reasons why something happened. It just draws a parallel between two events, based on the fact that the African people were heavily oppressed by the majority and the political system itself. The Second Boer War was a war that Britain fought to consolidate its colonial supremacy, whereas the Brixton uprising was a riot led by poor, discriminated African-Caribbeans in London. Both cases included the oppressed Africans and the British oppressors.
Answer:
They don't have to rhym of have a rhyming couplet, because they are "free"
Explanation:
the deeper he goes into Hell, the lower levels of it, the sins become worse. Starting from Limbo, where the sinners haven't committed anything that serious, until he gets to the ninth circle where the worst sinners are.