What should the train operator do in Release mode as per the Trainmaster's instructions?

Remaining in Release mode is the appropriate action for the train operator to take as per the Trainmaster's instructions. In this context, Release mode is typically a state where the train is ready to respond to controls, allowing for efficient operation during certain phases of the journey. By staying in Release mode, the operator ensures that the train can be efficiently controlled and is prepared for any necessary adjustments or operations based on operational needs or forthcoming instructions.

Other actions, such as switching to Manual mode or turning off all systems, would unnecessarily complicate the operation and could lead to operational delays or safety risks. Changing to MCS (Motion Control System) mode may not be indicated in this scenario, as it suggests a different operational state that may not align with the Trainmaster’s current instructions. Therefore, remaining in Release mode is vital for maintaining optimal functioning and readiness.