Recently, rumors spread that December 21, 2012 will mark the end of the world. It’s been reported that in some areas of China, people have begun to rush out for candles and matches in case there’s three days and nights of darkness on the proclaimed doomsday. Li Hua and Tom are having a discussion about just that.
Míngtiān shì shìjiè mò___, nǐ xiāngxìn ma?
Li Hua：明天 是 世界 末___，你 相信 吗？
Which of the following words is suitable for the above blank in the conversation?