The correct answer is C, hypocrisy. This work of Mark Twain's is actually a fictionalized version of his own wartime experiences. He is trying to tell us that there is nothing glorious about war, that there is only death and suffering. It cannot be glorious when you have to kill somebody, or somebody will kill you. That's the irony and hypocrisy that Twain was trying to convey in this work.
it is so much important to be deliberate and discipline in our relationship to technology as if we don't become serious about them it would may lead to its disadvantage and have negative effect to our life