What action should be taken if the Train Hold is in effect?

The correct choice involves selecting MCS mode, touching the Train Hold symbol to cancel it, and then proceeding to depart. This action is appropriate because initiating a departure from a Train Hold requires the direct acknowledgment and cancellation of that hold. By interacting with the Train Hold symbol, the engineer confirms that the hold is no longer in effect, ensuring safe and proper movement of the train.

Remaining in MCS mode and waiting for instructions does not actively resolve the hold situation, which may lead to unnecessary delays or confusion regarding the train's operational status. Simply notifying the Trainmaster without taking any further steps also fails to address the immediate need to cancel the hold. Switching to MATC mode is inappropriate since this mode is intended for different operational scenarios and may not provide the necessary control and assurance needed to cancel the hold effectively. Engaging the Train Hold symbol directly in the correct mode is the most straightforward and safe approach to resume train operation.