This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
[{'content': 'One of the intestinal enzymes that is generally deficient in children following an attack of severe infectious enteritis is: \nSelect and explain. \nA. Lactase, B. Trypsin, C. Lipase, D. Amylase', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Secondary lactose intolerence follows small bowel mucosal damage (celiac disease, infective diarrhea) and usually transient, improving with mucosal healing. Ref:Kligman, Behrman, Jenson, Stanton (2008), Chapter 335, "Disorders of Malabsorption", In the book, "Nelson\'s Textbook of Pediatrics", Volume 2, 18th Edition, New Delhi, Page 1598', 'role': 'assistant'}]