【单选题】

The criticism of Mr. Burrows toward the scheme implies that
A．he is very angry for many of his apprentices' failing in acquiring the NVQ certificates.

B．those who have physical defects can impossibly pass the exams for NVQ.
C．the apprentices who have got NVQ certificates always choose to leave for an other place.
D．NVQ is so difficult that he has to spend more time in teaching the youngsters.