What is the purpose of the train crew's safety briefing?

Answer: B — To ensure crew members are aware of duties and safety protocols

The purpose of the train crew's safety briefing is fundamentally centered on ensuring that all crew members are fully aware of their respective duties and the safety protocols that are critical to the safe operation of the train. Safety briefings are designed to reinforce the importance of communication, coordination, and compliance with safety regulations among the crew, which in turn helps to mitigate risks and enhance overall safety during the journey. During the safety briefing, the crew reviews key safety information, including emergency procedures, risks associated with the specific train operations, and roles each member will play in maintaining a safe environment. This shared understanding is essential for the team to work effectively together and respond appropriately to any unexpected situations that may arise during the trip. Hence, this choice accurately captures the primary focus of the safety briefing within the context of railroad operations.