What is the definition of Rotation Speed (VROT)?

Rotation Speed (VROT) is defined as the specific airspeed at which the pilot initiates the aircraft's rotation from its three-point attitude, where all three landing gear are on the ground, to the takeoff attitude, where the nose of the aircraft is raised in preparation for takeoff. At this critical speed, the pilot pulls back on the control yoke or stick to lift the aircraft's nose, allowing it to achieve lift-off. This action is essential for a safe and effective takeoff, ensuring the aircraft has adequate aerodynamic performance to become airborne. The other choices do not accurately define this specific moment in the takeoff process, as they either pertain to other phases of flight or misinterpret the actions and speeds related to takeoff.