What device allows the RTC to control switches and signals in CTC territory?

The Control Console is the correct choice because it serves as the centralized interface used by the Remote Traffic Controller (RTC) in Centralized Traffic Control (CTC) territory to manage and oversee train operations. This device enables the RTC to control signals and switches, ensuring safe and efficient train movements within the CTC system. This interaction is crucial for coordinating multiple trains on a given line, managing track occupancy, and responding to operational changes or emergencies.

The other options do not fulfill this specific function. The Locomotive Speed Limiter is designed to prevent trains from exceeding speed limits, focusing more on speed control than on managing track switches or signals. Automatic Train Control is a system intended to help trains operate safely and efficiently by monitoring speeds and enforcing signals but does not offer the operational control interface that the Control Console provides. The Train Control Apparatus typically refers to equipment that aids in train operations but doesn't specifically denote the centralized control aspect that the Control Console encompasses. Overall, the Control Console is integral in maintaining the overall integrity and safety of train operations in CTC territory.