This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
In pneumococcal meningitis empirical treatment given is 
Select and explain. 
A. Pencillin G, B. Doxycycline, C. Tetracycline, D. Vancomycin + ceftriaxone
D: Vancomycin + ceftriaxone
Answer: D: Vancomycin + ceftriaxone 
Explanation: Currently, dual therapy using high dose vancomycin (60 mg/kg/day) and either a third-generation cephalosporin (cefotaxime or ceftriaxone) or rifampin has been proposed as the optimal empirical treatment for suspected pneumococcal meningitis until antibiotic susceptibilities are known Ref Harrison20th edition pg 2345