It’s A because they are tried of fighting not for them but for the people around the world
The struggle or clash would be the conflict(C) because conflict is a disagreement or a clash of ideas.
"We had passed through long walls of piled skeletons, with casks and puncheons intermingling, into the inmost recesses of the catacombs."
"We are below the river's bed. The drops of moisture trickle among the bones."
These are some sentences that give us the creepy setting that makes for an eerie mood.
