A and B are both close, but A should be the answer. If yo need to get somewhere a certain amount of time, you need to be quick so you won't be late.
A few things can include taking a hot shower before bed, make sure you've completed everything you needed to do for the day, and go to bed on the right time, a bad habit would probably be staying up late to watch a movie or something
I believe you are free to hike without training.
D. Hike
Answer:
X-rays may be covered under Medicare Part B :)