If an aircraft’s identification is lost before or during a hand-

If an aircraft’s identification is lost before or during a hand-off, the subsequent radar controller must _______ until the aircraft’s identification is reestablished.

A.instruct the aircraft to climb

B.instruct the aircraft to descend

C.use non-radar procedures to separate the aircraft

D.inform the transferring controller that the aircraft is unacceptable

正确答案是C