The answer is c) because that's where they do that stuff.
You should give out all of the above to let them do their job in the best way.
I believe the answer is C joints. The only other option would be obstructive sleep apnea however, you would assess their oral airway to determine this. So I will go with Osteoarthritis.
Step 2 I think. Because some First Aid stuff needs to be done by the professionals.
