Question id 101 - Preflight Preparation - FAA PPL(A) - Private Pilot Airplane

An altitude of 500 feet above the highest obstacle within a horizontal radius of 1,000 feet of the aircraft.
An altitude of 1,000 feet above the highest obstacle within a horizontal radius of 2,000 feet of the aircraft.
An altitude of 1,000 feet above any person, vessel, vehicle, or structure

Training tests and timed exam simulations FAA PPL(A) - Private Pilot Airplane