At what age, height, and weight must a child be secured in a booster seat when traveling in a vehicle?
Answer: B — Age: 4-7, Height: 4 ft, 9 in, Weight: 65 lbs
Children must be secured in a booster seat when traveling in a vehicle until they are at least 4-7 years old, 4 feet 9 inches tall, and weigh 65 pounds. This is because booster seats are designed to position the seatbelt correctly on a child's smaller body, providing optimal protection in case of an accident. Option A is incorrect because the age, height, and weight do not align with the recommended requirements for a booster seat. Option C is also incorrect because the specified age range is beyond the appropriate age for a booster seat. Option D is incorrect because the age, height, and weight provided do not match the guidelines for using a booster seat.