Question 8 of 10 (1 point) jump to question: the following are guidelines which protect works from falls from what type of surfaces? guard employees for falls in wall openings, floor openings, and floor holes in both indoor and outdoor environments of the workplace. install osha-approved handrails, slip-resistant treads on steps, and highlighted nosing. provide osha-approved ladders and stepstools and instruct employees how to safely use that equipment. a. single-level surfaces b. elevated surfaces c. human factors