A pregnant woman is choking inside a local restaurant. Who has the most compelling legal duty to act?

A) An off-duty EMT who just finished eating and is headed to the bathroom
B) EMTs from another county eating lunch after dropping off a patient at a local hospital
C) An EMS supervisor who just came into the restaurant and is on a week's vacation
D) A retired paramedic who just finished eating and is paying his bill

B) EMTs from another county eating lunch after dropping off a patient at a local hospital