How Should an EMT Assist a Patient in Taking His

How should an EMT assist a patient in taking his epinephrine auto-injector?

A) Press the injector onto the lateral thigh, and wait for it to automatically inject.
B) Place the injector against the deltoid muscle in the arm, and push the plunger to slowly inject the medication.
C) Pinch the skin on the anterior thigh, press the injector against the skin, and wait until it activates.
D) Pinch the skin on the lateral thigh, press the injector against the skin, and rapidly push the plunger to inject the medication.