What equipment would you expect to find in a metro bag?

In the context of emergency response, a metro bag is specifically designed to carry tools and equipment relevant to metro operations, particularly for situations that may arise in subway or train environments. This is why the correct answer is closely aligned with tools such as wheel chocks, which help stabilize vehicles and prevent unintended movement, and hot sticks, which are used for working with high voltage electrical equipment safely.

The other options do not accurately describe the contents of a metro bag. Medical supplies for patient care, while critical in emergency response, would typically be found in a medical bag rather than a metro bag. General firefighting gear focuses on equipment used in fire suppression and may not include specialized tools for metro operations. Hoses and nozzles, essential for delivering water in firefighting efforts, are also outside the scope of what a metro bag would specifically contain, as they relate more to traditional firefighting rather than urban transit emergencies. Therefore, the identification of tools specific to metro operations emphasizes the unique needs and safety considerations required when managing incidents related to metro systems.