What should be used if it is necessary to move containers between floors?

Using an elevator to move containers between floors is the most appropriate choice because elevators are specifically designed to safely transport goods, including heavy or bulky items, between different levels. They provide a controlled and stable environment that minimizes the risk of injury or damage during the transport process. Elevators can handle significant weight, ensuring that items are moved efficiently without the risk of falling or tipping over, which can occur with other methods.

In contrast, while a trolley may facilitate movement over short distances, it is not ideal for vertical transport, as it can be challenging to manage on stairs or ramps. Staircases may pose a safety risk, especially with heavy or awkwardly shaped containers, as they require manual lifting, which increases the likelihood of injury. Ramps can assist in moving items across levels; however, they may not be suitable for all types of containers and might require additional strength and caution to navigate safely. Therefore, elevators are the safest and most efficient method for moving containers between floors.