In the case of an emergency, who should be immediately informed?

The correct choice emphasizes that the RCC, or Rail Control Center, should be immediately informed during an emergency situation. The RCC plays a critical role in overseeing train operations and managing the response to emergencies on the rail network. By alerting the RCC, a centralized and coordinated response can be organized, which may involve coordinating with emergency services, informing other trains and operators, and ensuring that safety protocols are followed.

Additionally, while local police and other emergency personnel may need to be involved depending on the nature of the emergency, the RCC is responsible for the overarching management of the situation and ensuring that all necessary actions are taken effectively. Informing all train operators and passengers is also important, but it is typically part of a broader strategy coordinated through the RCC rather than an immediate direct action in the heat of an emergency. The RCC's timely communication can facilitate the right decisions and actions to safeguard both operations and the individuals involved.