I would say that the two main things that need to be checked first are is the patients' heart ticking and are they breathing, keeping in mind that if the heart is stopped then immediate CPR would be necessary or if there is no breathing, clearing of the throat and mouth to mouth resuscitation would be recommended.
B makes the most sense to me so I would go with that
Perform cpr until the advanced medical personnel arrives
BMR or the Basal Metabolic Rate is the measure of the amount of calories that you burn if you were to do nothing but rest for 24 hours. So based on the given options above, the one that would have an increased BMR would be all of the above. Tim who is recovering from surgery, Mary who is pregnant, and Sally who is an avid swimmer. Hope this helps.
