<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:An exclusively breast-fed, 5-day-old boy is brought to the physician by his mother for a routine examination. He was born at term and delivery was uncomplicated. He received all standard treatment and testing prior to being discharged from the hospital 3 days ago. Examination shows no abnormalities. Without receiving additional supplementation at this time, this newborn is at greatest risk of developing which of the following conditions?? A: Scaly dermatitis, B: Intracranial bleed, C: Microcytic anemia, D: Peripheral neuropathy, E: Rickets,  <response>: This is a question about nutritional deficiencies in exclusively breastfed newborns. The key information is that the newborn is 5 days old and has been exclusively breastfed since birth without any supplementation. The most likely nutritional deficiency in an exclusively breastfed newborn in the first week of life is vitamin D deficiency, which can lead to rickets. Vitamin D is not adequately transferred through breastmilk alone. Other options like anemia and peripheral neuropathy are unlikely this early. Intracranial bleed would only occur from physical trauma. Scaly dermatitis is not associated with exclusive breastfeeding.E: Rickets 