<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:An infant boy of unknown age and medical history is dropped off in the emergency department. The infant appears lethargic and has a large protruding tongue. Although the infant exhibits signs of neglect, he is in no apparent distress. The heart rate is 70min, the respiratory rate is 30min, and the temperature is 35.7C 96.2F. Which of the following is the most likely cause of the patients physical exam findings?? A: Mutation in the WT2 gene, B: Congenital agenesis of an endocrine gland in the anterior neck, C: Excess growth hormone secondary to pituitary gland tumor, D: Type I hypersensitivity reaction, E: Autosomal dominant mutation in the SERPING1 gene,  <response>: Based on the information provided, this appears to be a question about identifying the most likely diagnosis for an infant with signs of hypothyroidism, including lethargy, low body temperature, slow heart rate, protruding tongue, and possible developmental delays. The key physical exam findings point towards a congenital cause of hypothyroidism.B: Congenital agenesis of an endocrine gland in the anterior neck 