You have been called to a residence for a 31-year-old patient complaining of confusion, nausea, vomiting, and a headache. He states that this started this morning and has been getting worse all day. Despite lying in bed and resting all day, he is more fatigued than before. Which of the following statements made by the patient would the EMT recognize as most important in relation to the patient's

present complaint?

A) "I just turned the furnace on last night."
B) "I tried some raw seafood last week."
C) "My wife is taking penicillin, to which I am allergic."
D) "I have not been sleeping well the past few nights."

A