<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 7-year-old boy is brought to a pediatric clinic by his mother because he had difficulty swallowing for 4 days. He was diagnosed with asthma 3 months ago and has been using an inhaler as directed by the pediatrician. The child does not have a fever or a cough and is not short of breath. He denies pain during swallowing. His vital signs include: temperature 35.8C 96.5F, respiratory rate 14min, blood pressure 9040 mm Hg, and pulse 80min. The oral examination reveals a slightly raised white lesion over his tongue as shown in the provided photograph and oropharynx. What is the most likely diagnosis?? A: Lichen planus, B: Leukoplakia, C: Primary gingivostomatitis, D: Oral thrush, E: Oral hairy leukoplakia,  <response>: This is a clinical case about a 7-year-old boy with difficulty swallowing. Based on the information provided, the most relevant details are: - 4 day history of dysphagia difficulty swallowing- Diagnosed with asthma 3 months ago, using an inhaler- No fever, cough, shortness of breath - Denies pain with swallowing- Physical exam shows white lesions on tongue and oropharynx- Photo shows white plaque-like lesions The differential diagnosis includes conditions that can cause white lesions in the oral cavity. Lichen planus and leukoplakia are chronic conditions seen more often in adults. The lack of fever makes primary gingivostomatitis due to HSV-1 less likely. The most likely diagnosis is oral thrush, which is a fungal infection caused by Candida that can occur after inhaled steroid use. Oral hairy leukoplakia is associated with immunosuppression and HIV.D: Oral thrush 