Several Days Of Worsening in Pediatrics — 3yo Child | Pediatric Infectious | SMLE Q#2305

A 3-year-old boy is brought to the clinic with several days of worsening skin lesions around his mouth. His mother reports he has a history of atopic eczema, and over the past week some of the eczematous patches near his lips became more red and oozed, then developed multiple small erosions covered with thick, honey-colored crusts. He has no fever and appears well otherwise. Physical examination shows erythematous plaques with overlying golden-yellow, honey-crusted exudate localized around the mouth and chin, without vesicles on the trunk or extremities. Which of the following is the most likely causative organism of this skin infection?