question: Imipenem, a newer antibiotic with a broad antibacterial spectrum, is co administered with cilastatin. Which of the following is the best reason for the same?
opa: Combination of antibiotics is synergistic against Pseudomonas specie
opb: Cilastatin aids gastrointestinal absorption of active moiety, imipenem
opc: Cilastatin inhibits beta=lactamase enzyme destroying imipenem
opd: Cilastatin inhibits an enzyme in kidney destroying imipenem