What is the maximum altitude that the A321 NEO can reach?

The A321 NEO is designed to operate efficiently at higher altitudes, and its maximum operational altitude is typically announced around 39,000 feet. This altitude allows the aircraft to take advantage of lighter air, which reduces drag and increases fuel efficiency. Flying at this altitude also helps in avoiding weather disturbances and optimizing flight time. As a result, 39,000 feet is within the operational limits specified by the manufacturer, making it the correct response for the maximum altitude the aircraft can achieve. The other options either fall below this operational ceiling or are not typical capabilities specified for the A321 NEO.