When parking near taxiways, the distance from the wingtip should be no less than?

Answer: B — 50 feet

The correct answer emphasizes the importance of maintaining a safe distance when parking near taxiways to avoid potential collisions or interference with aircraft operations. A minimum distance of 50 feet from the wingtip allows enough clearance for the wings of nearby aircraft as they taxi in and out. This distance is critical in ensuring that there is sufficient space to prevent accidents and to accommodate the large wingspans of various aircraft that may be operating in the vicinity. Ensuring this clearance is a standard safety measure at airfields, which helps protect both personnel and equipment. The specific choice of 50 feet aligns with established aviation regulations and guidelines that prioritize safety and operational efficiency on the airfield.