What type of highline uses a main line to support the load on pulleys or carabiners?

The Kootenay highline is a specific technique in rope rescue that utilizes a main line to support the load with the help of pulleys or carabiners, which allows for efficient and effective weight distribution and movement along the line. This technique is particularly useful in situations where rescuers need to transport loads across distances or navigate obstacles safely. The design ensures that the main line is under constant tension, which is crucial for maintaining stability during the rescue operation.

In the context of this question, the other options do not describe a highline system that specifically employs a main line with pulleys or carabiners in the same way. Synthetic lines refer more to the material used rather than the method or structure of the highline. Reeving relates to the threading of rope through pulleys, which can apply to various systems and is not unique to the Kootenay technique. Static conveys the idea of a non-moving line, but it doesn't embody the specific characteristics and operational capacity associated with the Kootenay highline. Understanding the distinct attributes of Kootenay highlines is essential for applying this method effectively in technical rescue scenarios.