Answer :
Final answer:
Simulated Forced Landings (SFL) outside gliding distance to a runway are typically discontinued at a minimum altitude of 500 feet AGL to ensure the pilot's safety.
Explanation:
The subject of simulated forced landings (SFL) is closely related to aviation training and safety. In the context of this question, the appropriate minimum altitude to discontinue a simulated forced landing outside of gliding distance to a runway is typically 500 feet Above Ground Level (AGL).
This altitude provides a margin of safety to ensure that the pilot has adequate height to react in case of an actual emergency and is in line with aviation training standards and practices which prioritize safety. For the purpose of the question provided, the correct answer would be A) 500 feet AGL.