<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 5 month-old boy with no significant past medical, surgical, or family history is brought the pediatrician by his parents for a new rash. The parents state that the rash started several weeks earlier and has not changed. The boy has breastfed since birth and started experimenting with soft foods at the age of 4 months. Physical examination reveals erythematous plaques with shiny, yellow scales over the scalp and external ears. Vital signs are within normal limits. Complete blood count is as follows:WBC 8,300 cellsml3Hct 46.1Hgb 17.1 gdLMean corpuscular volume MCV 88 fLPlatelets 242Which of the following is the most likely diagnosis?? A: Infantile seborrheic dermatitis, B: Tinea capitis, C: Langerhans cell histiocytosis, D: Pityriasis amiantacea, E: Atopic dermatitis,  <response>: Based on the description of erythematous plaques with yellow scales over the scalp and ears in a 5 month old infant, the most likely diagnosis is infantile seborrheic dermatitis. Seborrheic dermatitis classically presents as greasy scales on the scalp and face, often behind the ears. Tinea capitis, Langerhans cell histiocytosis, pityriasis amiantacea, and atopic dermatitis can present with scalp findings but are less likely in this clinical scenario. The normal lab values do not indicate any systemic disease. A: Infantile seborrheic dermatitis 