If advanced life support is going to be delayed indefinitely due to poor road conditions. If the patient remains in cardiac arrest, the BLS crew should: a) contact advanced life support for guidance on how to proceed

b) consider terminating resuscitation efforts

c) transport to the hospital without waiting

d) contact an EMS helicopter for assistance

If advanced life support is going to be delayed indefinitely due to poor road conditions. If the patient remains in cardiac arrest, the BLS crew should:

d) contact an EMS helicopter for assistance.

Explanation:

The only way to manoeuvre poor road conditions under emergency situations is to find alternative means of transportation.  Contacting an EMS helicopter looks like the only means for a cardiac arrest patient, who requires advanced life support (ALS), can be brought to the hospital by the Basic Life Support (BLS) crew.  Therefore, the option of contacting an EMS helicopter trumps other available options in this situation.