Is the correct negation for (B), “The leopard magpie moth does have the speed or agility to escape from SOME of its predators”? And if so, does this hinge on the fact that it contains the word “any”, which is treated like “all”, and therefore negated as “some is not”, and the added “not” creates a double negative which turns “does not” into “does”? If this is the case, I would like to know if this is a hard-and-fast rule we can apply every time we see the words “any”, “all”, “every”, “some”, or “most” anywhere in the answer choice of a necessary assumption question. I usually don’t have trouble negating these words when they are at the beginning of the sentence, as in “all swans are white”, but I had never negated an answer choice in this way when the quantifier was in the middle of the sentence. Consequently, like others, I thought the negation for this was “the leopard magpie moth does have the speed or agility to escape from ANY of its predators, which in my eyes, does undermine the argument. Any help would be greatly appreciated!