Which of the following should not be worn in a working area with overhead obstructions?

Open-toed shoes should not be worn in a working area with overhead obstructions because they provide insufficient protection for the feet in environments where falling objects or other hazards may be present. In such areas, the risk of injury from dropped tools, materials, or debris is significant, and open-toed shoes do not offer the necessary coverage or support to safeguard against these potential injuries.

In contrast, safety goggles, hard hats, and reflective vests are designed specifically for protection and safety in hazardous work environments. Safety goggles protect the eyes from flying debris, hard hats guard the head against falling objects, and reflective vests enhance visibility in potentially dangerous working conditions. Thus, these items are essential for maintaining safety, whereas open-toed shoes compromise that safety in a setting with overhead hazards.