What must the receiving employee do regarding permission from the Dispatcher?

The correct choice emphasizes the importance of communication and confirmation when receiving permission from the Dispatcher. When an employee receives permission, it is crucial for them to repeat the instructions back to ensure that they have understood the message accurately. This process serves multiple purposes: it clarifies any potential misunderstandings and ensures that both the employee and the Dispatcher are on the same page regarding the next steps. Waiting for confirmation after repeating the permission adds an extra layer of safety and allows the Dispatcher to verify the accuracy of what was communicated. This is essential in maintaining operational safety and efficiency within the railroad system.

The other options do not promote effective safety protocols or communication practices. Ignoring confirmation poses risks as it could lead to miscommunication and unsafe actions. Communicating with the Dispatcher's supervisor, while potentially useful in some contexts, does not directly address the immediate confirmation needed to ensure safe operations. Proceeding without confirmation completely disregards the necessary checks and balances that are essential for safe railroad operations, thereby increasing the risk of errors or accidents.