If the PA system is inoperative on the 319/320, what must you ensure?

If the PA system is inoperative on the 319/320, what must you ensure?

• A. The cabin lights are on
• B. The crew can rely on passenger hand signals only
• C. The flight deck and cabin interphone still works, the call chime system operates normally, ensure megaphone available and accessible
• D. The flight can be diverted if needed

Answer: (C)