ACCorDing to thE ArtiClE, A gooD stuDEnt in CollEgE must Also
A．know thE AnswEr to EvEry quiz quEstion
B．AnswEr only intErEsting quEstions
C．know thE AnswEr to EvEry quEstion thE tEAChEr Asks
D．know thE AnswErs to A lot oF quiz quEstions But mAyBE not thE hArDEst onEs