Final answer:
Children under 8 years old must be secured in an approved car seat or booster seat in South Carolina, and the correct answer is D) 8 years old.
Step-by-step explanation:
In South Carolina, all children under 8 years old must be properly secured in an approved car seat or booster seat. The correct answer to the question is D) 8 years old. This law is designed to ensure the safety of children on the road and applies to different age groups, including children ages 0 to 2.5, children ages 2.5 to 6, and children ages 6-13. After the age of 8, state laws and recommendations often transition towards the use of standard seat belts, depending on the child's height and weight.