What should a pilot do when VFR conditions do not allow for mission completion?

When VFR (Visual Flight Rules) conditions do not allow for mission completion, the pilot has several options, but the best practice is to prioritize safety and ensure compliance with regulatory requirements. The correct answer indicates that the pilot has the flexibility to choose any option listed, which reflects the FAA's emphasis on maintaining safety and situational awareness.

Altering the route under VFR can be a valid option if it allows the pilot to stay within safe flying conditions while completing the mission. However, it is crucial that any changes made do not compromise safety or lead the pilot into poor visibility.

Maintaining VFR until obtaining an IFR (Instrument Flight Rules) clearance is another reasonable choice. It allows pilots to use their current navigational skills while still seeking the necessary clearance to continue under IFR, which is essential when flying into areas with deteriorating weather conditions.

Landing at a suitable location is an essential safety measure when conditions become unsafe for continued VFR flight. It is always advisable to land if the weather deteriorates significantly, ensuring the safety of the aircraft and crew.

This multifaceted approach to handling the situation shows the pilot's responsibility for managing the flight safely and making informed decisions based on evolving conditions.