45 years old Ramlal has intra abdominal sepsis. The causative organism was found to be vancomycin, gentamycin and amplicillin resistant. It grows well in presence of 6.5% NaCl and arginine. Bile esculin hydrolysis is positive. Which of the following is this organsim ?
Growth in 6.5% NaCl is characteristic of Enterococci (E. faecalis, E. faecium, E. durans).
Strept. agalactae
Enterococcus fecalis
Streptococcus bovis
Streptococcus pneumoneae