The quick answer is A, I believe.
It is the closest thing to sarcasm in the poem. It is more of a wail that it is sarcasm. It bemoans the fact that you can easily fight people who are not as well equipped as you are to carry on a battle.
He doesn't mock their inability to fight back. The line that is sarcasm isn't mentioned. Laughter drowns out the pain and wailing.
The natives are doing the laughing. The British are.
The red and brown is more or less just a fact.
A is the closest thing you have to an answer.
It would better improve the paragraph because it has nothin to do with the rest of the paragraph. The paragraph seems to be about team sports and promoting it, while sentence 3 is about individual sports are better then team sports. So removing sentence three would better promote CO-ED team sports.
the author's purpose and what genre it is
Am I suppose to buy gifts for them
