e: all of the above
this is way:
to insure safety and the provide the best care you need to do A
to assess how many people you need to help and how much backup you need you need B
the location will tell you where the nearest hospital is and that dictates on what procedures you do on cite, so you need to asses C
the nearest telephone pole can be used to check availability at the nearest hospital, to call for backup, for family to call loved ones, etc. so u should assess D
hope this helps !