For what age group are child passenger safety seats required?

The requirement for child passenger safety seats is primarily focused on ensuring the safety of children in vehicles, and the correct choice aligns with the legal standards for child passenger safety in Texas. According to Texas law, children must be secured in a safety seat until they reach either the age of 8 years or a height of at least 4 feet 9 inches. This dual criterion (age and height) is designed to ensure that children are appropriately restrained based on their development and safety needs, since height often affects how well seat belts fit.

The other responses do not fully encompass the legal requirements or are based on incomplete age or height specifications. For instance, specifying just the age of 5 years ignores older children who still require safety seats, while the option referencing children under the age of 10 years includes an age range that may exceed safe limits without considering height. Moreover, the option regarding height does not reflect the legal parameters set forth for child safety seat regulations. Thus, the answer that combines both age and appropriate height ensures that children are adequately protected while traveling in vehicles.