How do conductors primarily ensure passenger safety during boarding?

Conductors play a crucial role in ensuring passenger safety during the boarding process, primarily by providing clear instructions. This involves communicating effectively with passengers about boarding procedures, any particular safety protocols that need to be followed, and ensuring that all passengers are aware of the correct way to enter and exit the train.

Clear instructions may include directing passengers to the correct entry points, informing them about where to store their luggage, and reminding them about safety measures such as waiting for the conductor's signal before boarding or disembarking. This guidance minimizes the risk of accidents, helps maintain order during boarding, and ensures that passengers feel informed and secure throughout the process.

While other options like delaying train departures or guiding passengers to seats can contribute to safety, they do not directly address the primary means by which conductors communicate vital safety information. Offering refreshments, while a part of the passenger experience, is not relevant to safety protocols during the boarding phase.