<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 6-month-old boy is brought to the pediatrician for multiple swellings on his scalp. His mother reports that she first noticed 3 softened and swollen areas over the childs scalp 2 months ago that have grown in size. The child is also urinating more frequently than usual. He was born by cesarean section at 39 weeks gestation. The mother had appropriate prenatal care. She has a history of gastroesophageal reflux disease for which she takes omeprazole. Her family history is unknown as she was adopted at a young age. The boys temperature is 99F 37.2C, blood pressure is 10060 mmHg, pulse is 110min, and respirations are 20min. On exam, he has 3 areas of soft tissue swelling on his skull that are tender to palpation. Moderate asymmetric exophthalmos is noted. A water deprivation test is performed which demonstrates a urine specific gravity of 1.005. The urine specific gravity rises with desmopression administration. A head computerized tomography CT scan is performed which demonstrates multifocal lytic calvarial lesions. A biopsy of one of the lesions is performed. Analysis of the biopsy would most likely reveal which of the following findings?? A: Atypical lymphocytes with cerebriform nuclei, B: B cells with hair-like cytoplasmic projections, C: Cytoplasmic azurophilic granules forming needle-like structures, D: Proliferative monoclonal plasma cells, E: Rod-shaped granules with a latticed matrix,  <response>: This is a clinical vignette about a 6-month-old boy with multiple scalp swellings, increased urination frequency, and a family history of unknown adoption. On exam he has scalp swellings, exophthalmos, and a water deprivation test showing diabetes insipidus. Imaging shows lytic skull lesions. This clinical presentation is most consistent with Langerhans cell histiocytosis. The biopsy would likely show Langerhans cells with characteristic cytoplasmic Birbeck granules.E: Rod-shaped granules with a latticed matrix 