Which of the following actions is prohibited when approaching a school bus with flashing lights?

When approaching a school bus that has its flashing lights activated, it is crucial to prioritize the safety of students boarding or exiting the bus. The action of passing the bus is prohibited because it increases the risk of endangering children who may be crossing the road to reach the bus or returning from it.

When a school bus is displaying its flashing lights, it signifies that the bus is either picking up or dropping off children. Stopping your vehicle is not only permissible but required in this situation, allowing children a safe passage. Proceeding without stopping would also be unsafe, as it could lead to accidents involving students. Additionally, honking your horn is inappropriate as it could distract or alarm students, potentially leading to unsafe behaviors. Thus, it is vital to adhere to the rule that prohibits passing the bus both for legal compliance and the safety of children in the vicinity.