Answer :
Final answer:
A qualified CAP pilot may exclusively handle the aircraft controls below 500 feet AGL, except during flight instruction or CAP evaluations, to ensure safety in more complex airspace. Hence, the correct option is (a).
Explanation:
The correct answer to this question is a) 500 feet Above Ground Level (AGL). Below that altitude, except in cases of flight instruction or during CAP evaluations, only a CAP pilot who has the appropriate qualifications is authorized to manipulate the airplane controls. This policy is in place to ensure safety, as the airspace below 500 feet is typically more challenging to navigate due to obstacles and requires a higher level of skill and experience.