What is the correct response when two chimes are heard?

When two chimes are heard in an aircraft, it indicates that the flight deck is attempting to contact the cabin crew. It is a standard auditory signal used to get the attention of the flight attendants. In this scenario, the correct response is for the flight attendants to answer the phone, ensuring clear communication with the flight deck. This protocol is critical for maintaining coordination between the cockpit and cabin, especially during important phases of flight or in case of an emergency. Clear and effective communication helps ensure passenger safety and operational efficiency.

The other options do not reflect the specific context of two chimes. For example, preparing for landing, bracing for an emergency, or preparing for safety demonstrations involve different signals or circumstances that do not correspond with the meaning of two chimes. The answer emphasizes the importance of addressing the communication from the flight deck promptly and correctly.