C. & D.
He killed himself because he could no longer tolerate the horrors of war, his own psychological abilities to deal with the horrors had turned on himself, so that he took his own life. And unlike a normal situation in life, the war had made it so that life and meaning were no longer relevant. They did not recognize the value of his life dead or alive, demonstrating another mental loss in the psychology of warfare.
I'm still on the fence about this but I'm quite sure the answer is C.
I hope this helped! :)
I think the answer is B (let me know if I'm wrong) (also can I have brainliest)
Um i would say maybe try to butter your hand. you could also use oil
