What can be a consequence for closing doors on passengers too quickly?

Closing doors on passengers too quickly can lead to serious safety risks, making this action a violation that could result in disciplinary action. Train operators are trained to prioritize passenger safety, which involves ensuring that all individuals have safely boarded or exited the train before the doors are closed. This regulation exists to prevent injuries to passengers, such as getting caught in the doors, which can cause harm and result in legal repercussions for the operator and the transit authority.

Moreover, closing doors too quickly may create delays as it could lead to incidents where the train must stop to accommodate a safety issue, thereby affecting the schedule and overall service reliability. While there are protocols for emergencies, they are carefully defined and usually involve specific procedures that differ from regular operations. This highlights the importance of adherence to safety regulations to maintain a secure environment for all passengers, making option C the most appropriate response in this context.