Catalase positive, beta-hemolytic staphylococcus -: (A) S. aureus, (B) S. epidermidis, (C) S. saprophyticus, (D) None
Answer is A. All staphylococci are catalase positive.
Amongst staphylococci, staph. aureus is beta-hemolytic.
Most species of coagulase-negative staphylococcus species are non-hemolytic.