<prompt> Catalase positive, beta-hemolvtic staphylococcus -S. aureusS. epidermidisS.saprophyticusNone  <response>: Ans. is a i.e., S. aureus Ref: Essentials of medical microbiology p. 779o All staphylococci are catalase positive,o Amongst staphylococci, staph, aureus is beta hemolytic,o Most species of coagulase negative staphylococcus species are non-hemolvtic.o b-hemolytic staphylococci - Staph, aureus.o Non-hemolytic staphylococci - Coagulase-negative staphylococci 