单选题 The word "obscurity" in paragraph 2 could best be replaced by ______ .

【正确答案】 A
【答案解析】“But other slang expressions enjoy momentary popularity followed by obscurity.”这句话的意思是有些俚语只流行一时，随后就会消失。“obscurity"在这里是“消隐，隐退”的意思。