Exercise is physical activity that requires planned structured repetitive movement. Fitness is the the body's ability to supply energy during continuous physical activities.
Answer:
Action: Setting a good sleep schedule and making sure you get the right amount of sleep every night.
Barrier(s): insomnia, excessive homework/other activities, people who wake you up, etc.
I feel like both A and C is correct because alcohol can effect on body and also the drug.
Milk, yogurt, most dairy can be rich source of calcium
