This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Streptococci, Subject name: Microbiology
[{'content': '45 yrs old Ramlal has intraabdominal sepsis. The causative organism was found to be vancomycin, gentamycin and ampicillin resistant. It grows well in presence of 6.5% NaCl and arginine. Bile ascenlin hydrolysis is positive. Which of the following is this organism? \nSelect and explain. \nA. Streptococcus agalactae, B. Enterococcus fecalis, C. Streptococcus bovis, D. Streptococcus pneumoneae', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e. Enterococcus fecalis Enterococcus belongs to Group D of Lancefield classification of Streptococci.Group D includesEnterococcal groupNon enterococcal group eg. Strep bovis.CHARACTERISTICS OF MEDICALLY IMPORTANT STREPTOCOCCI*OrganismGroupHemolysisHabitatLaboratory propertyDiseasesStreptococcus pyogenesABetaThroat, skin* Inhibited by bacitracin*PYR test positivePharyngitis,impetigo,Rheumatic fever,glomerulonephritisStreptococcus agalactiaeBBetaFemale genital tract* CAMP test** M.C. cause of neonatal meningitis & sepsisViridans streptococcus Alpha noneMouth, throat, colon, female genital tractColony not soluble in bileDental caries (S.mutans)endocarditis abscessStreptococcus pneumoniaeNoneAlphaThroatSusceptible to Optochin*, colony bile soluble*,Quellung +ve*Pneumoniameningitis,endocarditisPeptostrep- tococcusNoneNone, alphaMouth, colon, female genital tractObligate anaerobesAbscesses", 'role': 'assistant'}]