Final answer:
Teenagers should aim for approximately b.9 hours of sleep per night to support their optimal health and well-being during a time of significant physical and cognitive development.
Step-by-step explanation:
Teenagers should get approximately how many hours of sleep per night? The recommended amount of sleep for teenagers on a nightly basis falls within the range of 8 to 10 hours.
This recommendation is aimed at supporting optimal health and well-being for teenagers as they navigate physical growth, cognitive development, and the various challenges associated with adolescence.
The correct choice from the given options is b. 9 hours.
It is important to mention that individual needs can vary, and some teenagers might feel well-rested with slightly less or more than this amount.
Nonetheless, staying within the recommended range is crucial for avoiding sleep debt and the negative consequences associated with chronic sleep deprivation, such as decreased alertness and mental efficiency.