Final answer:
The priority and right-of-way within the traffic pattern of an airport always go to manned aircraft, hence sUAS operators must yield to them.
Step-by-step explanation:
When operating an sUAS (small Unmanned Aircraft System) in the vicinity of an airport, such as Sulphur Springs Airport (SUR), it's important to know the rules regarding priority and right-of-way in the traffic pattern area. According to FAA regulations, priority and right-of-way always go to manned aircraft. Therefore, the correct answer is that the existing manned aircraft have priority and right-of-way. An sUAS operator must yield to all manned aircraft to maintain safety and prevent collisions.