Which of the following correctly lists special purpose codes that are to be used in conjunction with Secondary Surveillance Radar (SSR)?
Distress 7600; Hijacking 7500; Communication failure 7700
Distress 7700; Hijacking 7600; Communication failure 7500
Distress 7500; Hijacking 7700; Communication failure 7600
Distress 7700; Hijacking 7500; Communication failure 7600