What guidelines should be followed when setting up a rescue anchor?

When setting up a rescue anchor, it is critical that it be strong, stable, and positioned away from potential hazards. A strong anchor is essential to ensure it can support the weight and forces during a rescue operation, as it would be subject to dynamic loads, including the weight of the rescuers, equipment, and possibly the victim being lifted or lowered. Stability is important to prevent any movement or failure of the anchor under stress, which could lead to catastrophic consequences during a rescue.

Additionally, placing the anchor away from potential hazards minimizes the risk of accidental injuries from environmental factors, such as falling debris or unstable ground that could undermine the anchor's integrity. This thoughtful placement helps ensure a safer operation for all personnel involved, allowing them to focus on the rescue without unnecessary risks.

The other choices, while they may contain elements relevant to different contexts, do not align with best practices for rescue anchors. A weak anchor would jeopardize the safety of the operation, and a light, portable anchor might not provide adequate strength and stability. Temporary setups could compromise safety if they do not meet the necessary requirements for strength and stability. Hence, the selected answer emphasizes the utmost priority of safety in rescue operations.