Answer: A
Explanation: It is formal. Adiós means goodbye and I think to believe that susana is a name . So therefor “Audiós, Susana” translates to “goodbye susana”
Answer:
1. un viaje
2. automático
3. de el pasajero
4. superior
5. de mano
6. de vuelo
7. de salida
8. de embarque
9. aérea