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

The cabin door lock indicators on the ERJ (Embraer Regional Jet) are designed to provide clear visual feedback regarding the status of the cabin doors. The correct answer, which pertains to the indicators, is represented by the clear/green lights.

The clear light typically indicates that the door is closed and properly sealed, while the green light signifies that the door is in a secure position, ready for flight. This clear distinction allows crew members to quickly assess the status of the doors without confusion, which is crucial for safety during pre-flight checks and operational procedures. The use of visually intuitive colors like clear and green helps to minimize the risk of errors related to cabin door security, thereby enhancing overall flight safety.

This specific color coding is a standard used in aviation to communicate the readiness and safety of door mechanisms intuitively. Other options would not accurately depict the indicators used in this aircraft model.