<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 3-year-old boy presents to the clinic for evaluation of leg pain. This has been persistent for the past 3 days and accompanied by difficulty walking. He has also had some erythema and ecchymoses in the periorbital region over the same time period. The vital signs are unremarkable. The physical exam notes the above findings, as well as some swelling of the upper part of the abdomen. The laboratory results are as follows:Erythrocyte count 3.3 millionmm3Leukocyte count 3,000mm3Neutrophils 54Eosinophils 1Basophils 55Lymphocytes 30Monocytes 3Platelet count 80,000mm3A magnetic resonance image MRI scan of the abdomen shows a mass of adrenal origin. Which of the following is the most likely cause of this patients symptoms?? A: Retinoblastoma, B: Wilms tumor, C: Rhabdomyosarcoma, D: Neuroblastoma, E: Hepatoblastoma,  <response>: Based on the information provided in the question stem, the key findings are:- 3-year-old boy with leg pain, difficulty walking, periorbital erythema and ecchymoses- Abdominal swelling- Low erythrocyte, leukocyte, and platelet counts- High basophil count- Adrenal mass on MRIThis constellation of findings - young age, bone pain, periorbital changes, pancytopenia, high basophil count, and adrenal mass - are classic for neuroblastoma. The differential diagnosis includes other pediatric malignancies like retinoblastoma, Wilms tumor, rhabdomyosarcoma, and hepatoblastoma, but neuroblastoma fits the presentation best.D: Neuroblastoma 