ANSWER:
The options for this question are not given and is therefore incomplete. However, below is a list of some benefits of having adequate amounts of sleep:
1. Lowers stress
2. Improves memory
3. Elevates mood
4. May help in weight loss
5. Reduces inflammation
6. Reduces risk of heart disease
7. Improves concentration
8. Improves creativity
9. Helps to maintain a good immune system
10. Improves the skin
I think its thru blood cells im not sure though.
