A moral dilemma is where you have to choose between two things, and you have a moral reason for both choices, but cannot decide which to choose from.
The answer would be The jaws of darkness do devour it up
Overall, Thoreau wanted to prove that not everyone will easily flow with the rules of society. As a result, he calls the people who go different paths than the ones of society "different drummers."
In conclusion, your final answer should be A.
