Oil Drilling Companies Tend to Be Very Safety Conscious Because

Oil drilling companies tend to be very safety conscious because of the hazardous nature of the work. However, given that engineering interventions are not always possible in this type of work, what would be the next best way of protecting oil rig workers?

A) keeping the drilling rig as clean as possible to avoid trips and falls
B) responding effectively to emergency situations to get medical aid
C) mandatory use of hard hats and safety goggles to avoid contact injuries
D) developing, teaching, and reinforcing safe work habits for every task