What should be done if a crew member receives a stop signal during an inspection?

When a crew member receives a stop signal during an inspection, the appropriate action is to stop the train immediately for an inspection. This is crucial for ensuring safety and compliance with operational protocols. The stop signal indicates a critical situation that requires attention, and proceeding without addressing the signal could lead to unsafe conditions or accidents.

Stopping allows the crew to assess any issues that might be present, ensuring that all safety measures are upheld. In the context of railroad operations, adhering strictly to signals is a fundamental practice; failure to do so can compromise the integrity of the operation and the safety of both the crew and passengers.

Other options may suggest continuing operations or disregarding the stop signal, which can create further risks. Notifying nearby trains without stopping doesn't address the immediate concern at hand, and ignoring the signal could escalate any underlying issues. Thus, stopping immediately aligns with best practices for safety and operational integrity.