A​ state's good samaritan law would not protect the health care​ provider(s) in which of these​ situations?

a. when an emt is working for a volunteer ems system and performs an act of gross negligence
b. when the emt stops to help a collapsed person at a park while off duty by providing​ cpr, but the patient still dies
c. when an emt is off​ duty, but stops to assist at a motor vehicle collision and functions in good faith
d. when a nurse or physician who is off duty stops to assist at an ems call where paid emts are​ present, but the patient still dies