To make an emergency lean-to or debris hut more visible to potential rescuers, it should be clearly marked with which color?

The correct choice is blaze orange because this color is highly visible and easily recognizable in natural environments. Blaze orange stands out against most backdrops, such as green foliage and brown earth, making it an ideal choice for signaling. When creating an emergency lean-to or debris hut, marking it with blaze orange helps ensure that searchers can spot the structure quickly from a distance, particularly in densely wooded or complicated terrain.

Other colors may not provide the same level of visibility or may blend in with surrounding elements. For instance, red can sometimes fade into the earth or foliage, yellow might not have the same immediate impact as blaze orange, while green could easily make the markings blend in with the surrounding environment, reducing the chance of being seen by potential rescuers. Blaze orange is specifically chosen in various safety and rescue contexts for its effectiveness in attracting attention, making it the best option for this scenario.