Smokeing is very bad for a childs lungs. Side smoking kill mank children every year. The risk of cancer is less for the child
A poor diet or eating saturated fats
Reducing screen time will allow someone to be more in tune to their surroundings, closer with family and friends, and explore their creativity outside of technology.
Getting a proper sleeping schedule set in stone will keep you awake and motivated throughout the day.
Drinking plenty of water and exercising regularly keeps the body moving and working therefore keeping you healthy and happy.
Take time to yourself to have alone time and manage your emotional/mental state.
B makes the most sense to me so I would go with that
Cross-cultural research stimulated by Vygotsky's theory reveals that adults begin to encourage valued skills as soon as children start school.