—I failed the exam again. I don't know what to do.

—_____ Hope is always around you. [ ]

A. Don't be serious

B. Never give up

C. Don't be relaxed

D. Never put down

氯仿（CHCl₃）和四氯化碳（CCl₄）的混合液在一连续精馏塔中进行分离。要求馏出液中氯仿的组成为0.95（摩尔分率），塔顶为全凝器，两组分平均相对挥发度。则第一块塔板下降的液体组成为（）。氯仿和四氯化碳混合液可认为是理想溶液。

A、0.89

B、0.56

C、0.37

D、0.92