What are the two options for cabin door lock indicators on the ERJ 175?

The correct answer reflects the specific color indicators used on the ERJ 175 to communicate the status of the cabin doors. For the ERJ 175, the cabin door lock indicators are designed to provide clear visual cues to the flight crew regarding whether the doors are properly secured.

In this case, the clear and green indicators serve distinct purposes: the clear indicator typically signifies that the door is not locked or is open, while the green indicator confirms that the door is locked and secure. This color coding is essential for ensuring safety during flight operations, as it allows crew members to quickly assess the readiness of the cabin doors before takeoff and landing.

Understanding the function of these indicators is crucial for the crew to operate the aircraft safely and efficiently, as it prevents potential miscommunication regarding door security.