How should chainsaws be stored when they are not in use?

Storing chainsaws in a secured, dry location with the blades covered or sheathed is the proper method because it significantly reduces the risk of accidents and damage. A covered or sheathed blade prevents unintentional contact with sharp edges, which can lead to injuries, making it much safer, especially in environments where others might encounter the tool.

Additionally, keeping the chainsaw in a dry location protects it from moisture, which can cause rust and deterioration of both the body and components of the tool. Adequate security ensures that the chainsaw is not accessed by unauthorized individuals or children, further enhancing safety. This combination of factors makes option B the most responsible choice for chainsaw storage.