Answer:
Care team would tell him that it is mild or moderate sprain and he is to keep his hand immobilized for few days to few weeks.
Sprain is a common injury for all type of athletes. Moderate sprains heals on their own all you need to do is let it rest for few days atleast 48 hour to few weeks (depending upon its severity). Ice your wrist in order to lessen the swelling and pain, use of bandage to compress the wrist is very useful, and use of cast or splint to keep the arm immobilize for few days is beneficial, however use of splint for long time could have negative effect of stiffness of muscles.
Answer D. All of the above
This question has already been answered by user Pink Floyd.
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.)
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