Ответьте на вопрос:
What should those who have to conduct business in the machinery work area do?
They should undergo a special training performed by the supervisor; then they are freely allowed to the work area.
They only should stand outside of the work area; eye protection is not necessary.
They should not approach the work area and keep a five-meter safety distance.
They should remain a safe distance away from the machinery and wear appropriate eye protection.