What is the phraseology used to reroute an aircraft via Victor Five New Hope without changing the remainder of the route?

The phraseology "Cleared via Victor Five New Hope, rest of route unchanged" is the correct choice because it uses standard air traffic control communication that effectively informs the pilot of a specific reroute without altering any other segments of their flight plan. This phrase clearly communicates the new routing instructions while maintaining clarity and precision, which is crucial for safety and operational effectiveness.

In air traffic communication, precise wording is essential for understanding directives. “Cleared via” is the standard terminology used to issue routing instructions, and specifying that the "rest of route unchanged" emphasizes that no other parts of the flight plan will be affected by this change. This clarity helps to avoid confusion and ensures that pilots maintain their situational awareness.

Other options may lack the standardized phraseology, which could lead to potential misunderstandings or errors. For example, terms like "reroute" or "change" can suggest more significant amendments than intended, making it less clear to the pilot that only a minor adjustment is being applied. The preferred language reinforces consistency in communication among pilots and air traffic controllers, which is vital for maintaining safety in the airspace.