To make your driving experience in the United States safe and enjoyable our company is providing you with this

To make your driving experience in the United States safe and enjoyable, our company is providing you with this "Rules of the Road" pamphlet. Please note, however, that this pamphlet does not represent a complete list of the motor vehicle and traffic laws of the various states. Regardless of whether or not a specific law is outlined below, it is your responsibility as the driver to follow all applicable (适合的) motor vehicle and traffic laws. Do Not Drink and Drive! Each state strictly prohibits Driving While Drunk. Wear Seatbelts―It’s the Law! Also, the use of child seats for babies and small children (usually under age 5) is required to stay in all states. Place child seats in the back seat only. Stay to the Right In the United States, motor vehicles are operated on the right hand side of the road. Be extremely careful to stay to the right at all times--especially if you are from a left-hand drive country. Obey the Speed Limit In most states, the maximum highway speed is 65 miles per hour (mph) in rural areas and 55 mph in urban (市区的) areas. Speed limits on secondary roads and in cities and towns are usually significantly lower, generally 30 mph and even lower in school zones. Stop for School Buses Traffic approaching in both directions must stop for a school bus while its red lights are flashing.The speed limit set for school zones is ______.

A.65 miles per hour

B.55 miles per hour

C.Lower than 30 miles per hour

D.Higher than 30 miles per hour

请帮忙给出正确答案和分析，谢谢！