Every 6 months it's recommended to have doctor and dental check-ups.
The very first contact to start every rally
Yes. It is good for people of any age to get that much exercise in per day.
(I have a fidbit and I usually get in 2000-3000 steps a day.)
1. eating healthy foods.
2. getting enough sleep.
3. getting enough exercise
4. managing stress
5. washing your hands consistently.
All of those things helps your immune system by strengthening it or by keeping germs away which intern helps prevent you from getting sick.
I hope this helps. Let know if anything is unclear.
e. decision making because a means that you have not reached a conclusion, be is more of "i only have so much" type of answer, c does not make sense, and definitely not d.