Poverty and domestic violence make it easy for her to trust that bad things will happen and take this ________happiness away.
句意：贫穷和家庭暴力让她更容易相信不幸即将到来，并带走本就少得可怜的快乐。adversary对手；敌手。vulgar粗俗的；通俗的。fragile脆弱的；易碎的。 superfluous多余的；不必要的。根据句意可知，fragile最为符合。故正确答案为C。