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: Microbiology
A patient was brought to emergency with complaints of high-grade fever and altered sensorium. He was diagnosed to be suffering from meningococcal meningitis. Which of the following is the most appropriate empirical treatment option? 
Select and explain. 
A. Ceftriaxone, B. Piperacillin--Tazobactam, C. Penicillin, D. Cotrimoxazole
A: Ceftriaxone
Answer: A: Ceftriaxone 
Explanation: Answer- A. CeftriaxoneMeningococcal meningitisTreatment:3rd generation cephalosporin such as cefotaxime or ceftriaxone is DOC for initial therapyProphylaxis: Rifampicin is DOC for meningococcal prophylaxisANTIBIOTIC RECOMMENDATIONS FOR BACTERIAL MENINGITIS:BACTERIAANTIBIOTIC(IV)DURATIONStreptococcus PneumoniaVancomycin+3rd gen. Cephalosporin(Cefotaxime or ceftriaxone) 10-14 daysNesseria meningitidis3rd gen. Cephalosporin(Cefotaxime or ceftriaxone) orPenicillin G or Ampicillin 5-10 days H.influenza3rd gen. Cephalosporin(Cefotaxime or ceftriaxone) 7-10 days Listeria monocytogensPenicillin G or Ampicillin + Aminoglycocide14-21 days GBSPenicillin G or Ampicillin + Aminoglycocide 14-21 days E.coli 3rd gen. Cephalosporin(Cefotaxime or ceftriaxone) 21 days