This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Small & Large Intestine, Subject name: Surgery
[{'content': 'Deficiency of which of the following vitamin is most commonly seen in short bowel syndrome with ileal resection: \nSelect and explain. \nA. Vitamin B12, B. Vitamin B1, C. Folic acid, D. Vitamin K', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Vitamin B12* Deficiencies in SBS:# Bile salt malabsorption# B12 deficiency (Most common)# Fat soluble vitamin deficiency# Steatorrhea (Fat loss)', 'role': 'assistant'}]