Which one of the following statements about maintenance is true?

A) The optimal degree of preventive maintenance is associated with zero breakdowns.
B) Breakdown maintenance is proactive.
C) Preventive maintenance is reactive.
D) Preventive maintenance is limited to keeping machinery and equipment running.
E) Human resources are a major component of effective maintenance management.

Human resources are a crucial component of effective maintenance management. They are responsible for carrying out maintenance activities, identifying potential problems, and recommending solutions to reduce breakdowns and downtime. Additionally, the training and development of personnel is essential to ensure that they have the necessary skills and knowledge to maintain machinery and equipment effectively.