This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
Following nutritional consequences are possible following peptic ulcer surgeries other than vagotomy 
Select and explain. 
A. Iron deficiency, B. Weight loss, C. Vitamin B12 deficiency, D. Folic acid deficiency
D: Folic acid deficiency
Answer: D: Folic acid deficiency 
Explanation: .COMPLICATIONS OF GASTRIC SURGERY * Haemorrhage. * Stomal obstruction. * Biliary fistula. * Injury to CBD. * Duodenal blow out--on 4th postoperative day. * Pancreatitis.* Recurrent ulcer stomal ulcer. * Gastrojejunocolic fistula. * Dumping syndrome (Postcibal syndrome). * Nutritional disturbances, diarrhoea. * Pulmonary tuberculosis. * Carcinoma in gastric remnant (after 10-15 years). * Gallstone formation. * Alkaline gastritis. * Afferent and efferent loop syndrome. * Afferent loop obstruction--common. * Efferent loop obstruction. Nutritional deficiencies following gastrectomy Iron deficiency anaemia 40% * Megaloblastic anaemia (after 5 years) 25% (100mg B12 is given IM weekly, later monthly) *Vit. B deficiency 10% *Calcium deficiency 40% *Calcium deficiency with bone changes (after 5 years) 5% ref:SRB&;s manual of surgery,ed 3,pg no 770