Final answer:
The sentence that supports the idea of children limiting caffeine is that it can have adverse effects on their developing nervous systems. Caffeine in high amounts can lead to serious health issues, making it important for young children to avoid excessive consumption.
Step-by-step explanation:
The sentence that best supports the idea that young children should limit the amount of caffeine they drink is: a) Caffeine consumption can have adverse effects on the developing nervous system of young children. This statement is supported by research showing that caffeine, while a commonly consumed stimulant, can lead to adverse effects such as insomnia, agitation, and other health issues. particularly in the developing systems of young children. High consumption has been linked to negative impacts on mental and physical health, which is crucial for young individuals whose bodies and brains are still developing. As such, it is important for children to limit caffeine intake to avoid potential harm.