<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 7-year-old Caucasian male presents with a temperature of 38C. During the physical exam, the patient complains of pain when his femur is palpated. The patients parents state that the fever started a few days after they noticed a honey-colored crusting on the left upper lip of the childs face. Culture of the bacteria reveals a catalase-positive, gram-positive cocci. Which of the following bacteria is most likely to be found in a biopsy of the childs left femur?? A: Staphylococcus aureus, B: Staphylococcus saprophyticus, C: Streptococcus pyogenes, D: Clostridium perfingens, E: Escherichia coli,  <response>: This is a clinical vignette describing a 7-year-old boy with fever, femur pain, and a honey-colored crust on his upper lip. The description of gram-positive cocci that are catalase-positive narrows down the causative organism. The combination of fever, bone pain, and skin findings is classic for hematogenous spread of bacteria, likely originating from the facial skin infection. Staphylococcus aureus is known to cause skin infections that can spread to bone, causing osteomyelitis. Therefore, Staphylococcus aureus is the most likely answer.A: Staphylococcus aureus 