During which part of the aircraft preflight process is the Plane Captain responsible?

The Plane Captain plays a crucial role in the preflight preparation and safety checks, ensuring that the aircraft is ready for flight. This responsibility includes conducting thorough inspections of the aircraft to verify that all systems are functioning properly and that safety measures are adhered to before takeoff. The Plane Captain checks fluid levels, fuel, any potential hazards, and equipment conditions, all of which are essential for the aircraft's safety and performance.

This preflight phase is vital as it sets the standard for flight readiness, and any oversight could lead to significant issues once the aircraft is airborne. By being diligent in this area, the Plane Captain helps maintain high operational standards and enhances the overall safety of flight operations, which is why this choice is the correct answer.