A 7-Year-Old Male Hits His Left Leg Shin on the Metal

A 7-year-old male hits his left leg shin on the metal edge of a stair step of his school bus. Two days after, his shin is swollen, hot, and red. His mom notices a trickle of pus from an opening. A visit to his pediatrician involves an x-ray of the injured site. It shows a lesion on his left tibia. If the responsible organism possesses protein A and can produce clumping factor, it should be screened for resistance to

A) high level aminoglycosides.
B) cefoxitin.
C) quinupristin-dalfopristin.
D) meropenem.