When discussing plant maintenance with plant maintenance managers, frequently the topic of using preventive maintenance (PM) comes up. If this is used extensively and the PM work orders are regularly completed, what is told by this about the operation?（）

A、It is likely that equipment will break down frequently.

B、It is likely that equipment will break down infrequently.

C、It shows that maintenance is performed on an as needed basis.

D、It shows that there are frequent crises when it comes to maintaining equipment.