B．eneath each of the following sentences, there are four choices marked［A］,［B］,［C］and［D］. Choose the one that best completes the sentence. Mark your answer on ANSWER SHEET 1 by blackening the corresponding letter in the brackets with a pencil. (10 points)
第11题：He is too young to be able to _______ between right and wrong.
A． discard B discern C disperse D disregard