This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
Ceftriaxone is: 
Select and explain. 
A. IInd generation sho acting cephalosporin, B. Has activity against beta lactamase producing bacteria, C. IVth generation long acting cephalosporin, D. IIIth generation long acting cephalosporin
D: IIIth generation long acting cephalosporin
Answer: D: IIIth generation long acting cephalosporin 
Explanation: 3rd generation cephalosporins: Cefotaxime, Ceftizoxime ,Ceftriaxone ?Ceftazidime ,Cefoperazone, Cefixime Cefpodoxime proxetil ,Cefdinir ,Ceftibuten ,Ceftamet pivoxil ESSENTIALS OF MEDICAL PHARMACOLOGY page no. 726