You are answering a USMLE-style medical question. Question: A 7 -day-old newborn boy presents to the emergency department with a history of fever, irritability, and generalized erythema. During the first 2 days of clinical manifestations, the parents of the child tried to control the symptoms using acetaminophen; however, the newborn continued to be ill, and blisters were noticeable around the buttocks, hands, and feet. During the physical examination, the vital signs include body temperature 39.0°C (102.3°F), heart rate 130/min, and respiratory rate 45/min. Ears, nose, and oral mucosa preserved their integrity, while the skin presents with diffuse blanching erythema and flaccid blisters with a positive Nikolsky’s sign. What is the most likely diagnosis in this patient? Options: A) Scarlet fever B) Scalded skin syndrome C) Impetigo D) Pyoderma Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.