What is the lowest altitude that you may fly over a wildlife conservation area?
A) 1,000 feet above the highest obstacle within a horizontal radius of 2,000 feet of the aircraft
B) 500 feet above the highest obstacle within a horizontal radius of 1,000 feet of the aircraft
C) 2,000 feet above the highest obstacle within a horizontal radius of 3,000 feet of the aircraft
D) 500 feet above the highest obstacle within a horizontal radius of 2,000 feet of the aircraft