Uh what service can be requested with each form? I just translated it :)
Answer:
Unos pasajeros tomaron una merienda en el coche comedor y el revisor pasó por el coche para revisar sus boletos.
Answer:
Could be either A or C depending on what they're asking. A is asking if the person wants them to list them into ballet and C is asking if the person already listed themselves for the ballet class.
Explanation: