Which of these operations involves parachuting methods taught at the Pathfinder School?

High-Altitude Low Opening (HALO) methods are indeed a part of the parachuting techniques taught at the Pathfinder School. HALO jumps are specialized parachuting operations where jumpers exit the aircraft at high altitudes (typically above 10,000 feet) and delay their parachute deployment until they reach lower altitudes. This technique maximizes stealth and minimizes the exposure of the jumper to enemy detection, which is crucial in military operations.

Students at the Pathfinder School receive training on various parachuting operations, and HALO falls under the advanced techniques that they learn for specific mission parameters, including reconnaissance and infiltration behind enemy lines. The focus on HALO methods demonstrates the school's commitment to preparing personnel for diverse and challenging scenarios that require precision and tactical execution from the air.

The other options, while they may involve airborne operations, do not specifically encompass parachuting techniques taught at the Pathfinder School. Each of those concepts represents distinct tactics or strategies that might not necessarily involve the specialized parachuting skills that HALO entails.