Which action is important if a student begins to show signs of illness during the bus ride?

Stopping the bus and calling for assistance is crucial when a student shows signs of illness during the ride. This action prioritizes the student's well-being and safety. When a student appears unwell, they may require immediate medical attention or support, and stopping the bus allows for proper care to be provided.

In addition to ensuring the student's health, stopping also allows the driver to monitor the situation closely and respond appropriately instead of continuing the route without addressing the signs of illness. Quick intervention can prevent the condition from worsening and sets a positive example for other students regarding health concerns.

Other approaches, such as ignoring the signs of illness, advising the student to tough it out, or waiting until the next stop to notify parents, may not adequately address the immediate needs of the student and can potentially lead to more serious health issues or uncomfortable situations for the child. Prioritizing a student's health in a timely manner is always the best course of action.