This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
A young male presents with meningococcal meningitis and allergy to penicillin. Which is the most suitable drug? 
Select and explain. 
A. Chloramphenicol, B. Meropenem, C. Ciprofloxacin, D. Teicoplanin
A: Chloramphenicol
Answer: A: Chloramphenicol 
Explanation: Chloramphenicol which is bactericidal to meningococci can achieve high concentration in the CSF, so useful in the treatment of meningococcal meningitis in penicillin resistant individuals. Ref: Essentials of Medical Pharmacology By KD Tripathi, 5th Edition, Page 674 - 5; Principles And Practice of Clinical Bacteriology By Stephen H. Gillespi, 2nd Edition, Page 215.