<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 2-week-old boy has developed bilious vomiting. He was born via cesarean section at term. On physical exam, his pulse is 140, blood pressure is 8050 mmHg, and respirations are 40min. His abdomen appears distended and appears diffusely tender to palpation. Abdominal imaging is obtained Figures A. Which of the following describes the mechanism that caused this childs disorder?? A: Ischemia-reperfusion injury in premature neonate, B: Telescoping segment of bowel, C: Abnormal rotation of the midgut, D: Hypertrophy of the pylorus, E: Partial absence of ganglion cells in large intestine,  <response>: This is a clinical vignette describing a 2-week-old infant with bilious vomiting, tachycardia, hypotension, tachypnea, abdominal distension and tenderness. The imaging shows a dilated duodenum and proximal jejunum with a transition point, consistent with malrotation of the midgut. The key findings pointing towards malrotation are the bilious vomiting in a newborn, imaging showing dilated duodenum and jejunum with a transition point, and physical exam findings of abdominal distension and tenderness. Choices A and E can be ruled out as they do not explain the clinical and imaging findings. Choice B refers to intussusception which would not present this early. Choice D refers to pyloric stenosis which classically presents with projectile non-bilious vomiting in an otherwise healthy infant. C: Abnormal rotation of the midgut 