Which of the following types of footwear is acceptable in a restaurant?

Rubber-soled shoes are considered acceptable footwear in a restaurant setting primarily due to their safety and functionality. These shoes typically provide a non-slip surface that helps prevent slips and falls in a fast-paced environment like a restaurant. They also offer more support and comfort for long shifts, reducing fatigue for employees who spend most of their time on their feet.

In contrast, sandals, high heels, and open-toed shoes may not meet the safety requirements needed in a kitchen or dining area. Sandals and open-toed shoes can expose the feet to potential hazards such as spills, dropped items, or hot surfaces. High heels can also be unstable on slippery floors and can increase the risk of injury. Therefore, rubber-soled shoes are the most practical choice for ensuring both safety and comfort in a restaurant environment.