A Male Patient Comes to the Clinic Where You Work

Multiple Choice

A male patient comes to the clinic where you work complaining of urethral discharge and pain on urination. He has recently had unprotected sex with someone he met at a party. You take a sample of the urethral discharge for analysis.
-You tell the patient that his sample contains white blood cells in which Gram-negative diplococci can be detected. Your patient asks how you obtained this result and you tell him you

A) performed a Gram stain.
B) performed an acid-fast stain.
C) cultured his discharge on Gram-positive medium.
D) cultured his discharge on Gram-negative medium.
E) performed an antibiogram.