Which Question Is Most Appropriate When Assessing a Patient Who

Which question is most appropriate when assessing a patient who is exhibiting symptoms of a systemic infection including a fever of unknown origin?

A) "Are you an intravenous drug user?"
B) "Have you been told that you drink too much alcohol?"
C) "Have you been diagnosed with an acute bacterial infection before?"
D) "Are you familiar with an infection of the heart called endocarditis?"