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.
B) people with other religious beliefs were welcomed by colony leaders but shunned by everyone else.
The last one is the correct answer.
It is "It's going to be a long wait," the nurse confided.
When someone is speaking, there needs to be quotation marks. Also, <em>It's</em> needs an apostrophe because that makes it stand for "It is"
So the last answer is the right one.