【单选题】

From the text, we can infer that
A．most of the apprentices in Mr. Burrows' shops can complete the scheme.

B．there is no appropriate way to avoid the apprentices' theft or lateness in the shop.
C．whether they pass the NVQ or not, the apprentices always feel cheerful.
D．during the course of obtaining the NVQ, the apprentices are just rivals, not friends.