What should you do if you approach a school bus with its stop sign extended?

Answer: C — Stop until the sign is retracted

When you approach a school bus with its stop sign extended, stopping until the sign is retracted is the correct action to ensure the safety of children. The stop sign indicates that children may be boarding or disembarking from the bus, and it is illegal and dangerous to continue driving at this time. By stopping, you are allowing for a safe environment for children to cross the road or move around the bus. This rule is designed to protect the most vulnerable road users and promotes responsible driving behavior in areas where children are present. In many jurisdictions, including Ohio, failure to stop for a school bus with its stop signal extended can result in strict penalties, including fines and points on your driving record. Therefore, it's crucial to adhere to this law consistently to ensure the safety of all road users, particularly children.