<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A previously healthy 4-year-old boy is brought to the physician because of blisters and redness on his neck and chest for 2 days. He has also had a fever. He is lethargic and has not eaten well since the rash appeared. He has not had coughing, wheezing, or dysuria. He is an only child and there is no family history of serious illness. His immunizations are up-to-date. His temperature is 38.9C 102F, pulse is 90min, and blood pressure is 8040 mm Hg. Examination shows flaccid blisters over his neck and trunk that rupture easily. Areas of erythematous moist skin are also noted. Twirling an eraser over the trunk results in a blister. Oropharyngeal examination is normal. Laboratory studies show:Hemoglobin 12 gdLLeukocyte count 22,000mm3Segmented neutrophils 77Eosinophils 3Lymphocytes 18Monocytes 2Erythrocyte sedimentation rate 60 mmhUrinalysis is normal. Which of the following is the most likely diagnosis?? A: Staphylococcal scalded skin syndrome, B: Pemphigus vulgaris, C: Scarlet fever, D: Bullous pemphigoid, E: Toxic epidermal necrolysis,  <response>: Based on the description of blisters and redness on the neck and chest of a previously healthy 4-year-old boy, along with fever, lethargy, poor appetite, and normal urinalysis, this appears to be a case of a viral or bacterial skin infection rather than an autoimmune blistering disease like pemphigus vulgaris or bullous pemphigoid. The lack of cough, wheeze or dysuria makes scarlet fever less likely. The presence of flaccid blisters that rupture easily and develop with light friction suggests staphylococcal scalded skin syndrome, also known as Ritters disease, which is caused by a toxin-producing strain of Staphylococcus aureus. This condition typically occurs in young children and causes the split between epidermal cells in the granular layer of the skin, leading to widespread blistering.A: Staphylococcal scalded skin syndrome 