<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 3-week-old boy has non-bilious projectile vomiting that occurred after feeding. After vomiting, the infant is still hungry. The infant appears dehydrated and malnourished. A firm, olive-like mass of about 1.5 cm in diameter is palpated in the right upper quadrant, by the lateral edge of the rectus abdominus muscle. On laboratory testing, the infant is found to have a hypochloremic, hypokalemic metabolic alkalosis. Which of the following is most likely the cause of this patients symptoms?? A: Intussusception, B: Duodenal atresia, C: Hypertrophy of the pylorus muscle, D: Aganglionic colon segment, E: Achalasia,  <response>: Based on the description, this appears to be a case of pyloric stenosis in an infant. The key findings are:- Non-bilious projectile vomiting after feeding in a 3 week old infant- Infant still hungry after vomiting - Palpable olive-sized mass in right upper quadrant - Metabolic alkalosis with hypokalemia and hypochloremiaThese findings are classic for pyloric stenosis which causes gastric outlet obstruction leading to projectile vomiting. The palpable pyloric mass and metabolic derangements confirm the diagnosis.C: Hypertrophy of the pylorus muscle 