<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:An inconsolable mother brings her 2-year-old son to the emergency room after finding a large amount of bright red blood in his diaper, an hour ago. She states that for the past week her son has been having crying fits while curling his legs towards his chest in a fetal position. His crying resolves either after vomiting or passing fecal material. Currently, the child is in no apparent distress. Physical examination with palpation in the gastric region demonstrates no acute findings. X-ray of the abdominal area demonstrates no acute findings. His current temperature is 36.5C 97.8F, heart rate is 93min, blood pressure is 10064 mm Hg, and respiratory rate is 26min. His weight is 10.8 kg 24.0 lb, and height is 88.9 cm 35.0 in. Laboratory tests show the following:RBC count 5 millionmm3Hematocrit 36Hemoglobin 12 gdLWBC count 6,000mm3Mean corpuscular volume 78 fLWhat is the most likely cause of this condition?? A: Failure of the vitelline duct to open, B: Failure of the vitelline duct to close, C: Problem with bilirubin conjugation, D: Problem with bilirubin uptake, E: Elevated anti-mitochondrial uptake,  <response>: Based on the information provided in the question stem, this 2-year-old boy is presenting with bright red blood in his diaper and a history of crying fits while curling his legs towards his chest. The description of the crying fits resolving after vomiting or passing stool points towards abdominal pain as the likely cause. The lab results show a low RBC count, hematocrit, and hemoglobin, indicating anemia, which could be caused by blood loss. There are no acute findings on x-ray or physical exam. The most likely diagnosis based on the age, symptoms, and lab results is intussusception, which is the telescoping of one segment of bowel into an adjacent segment. This often presents with intermittent abdominal pain, vomiting, bloody stool, and anemia in young children.Of the answer choices provided, failure of the vitelline duct to close a persistent omphalomesenteric duct would be the most consistent with intussusception causing the symptoms described.B: Failure of the vitelline duct to close 