A Football Player in Full Uniform Has Been Stung by a Bee

A football player in full uniform has been stung by a bee. Your assessment reveals him to be confused with stridorous respirations and weak radial pulses. His skin is warm and flushed and covered with hives. Vital signs are: pulse 164, respirations 28, blood pressure 74/58 mmHg, and SpO₂ at 87%. The coach notifies you that the patient is allergic to bees and hands you the patient's epinephrine pen. Your next action would be to:

A) completely expose the patient and administer the epinephrine into his anterior thigh.
B) lift the shirt over the abdomen and administer the epinephrine into his abdomen below the umbilicus.
C) lift the shoulder pads and shirt and administer the epinephrine into his upper arm muscle.
D) administer the epinephrine through a padless area of the pants over the side of his thigh.