<prompt> A patient who has undergone paial gastrectomy presents with neurological symptoms. Most probable diagnosisFolic acid deficiencyThiamine deficiencyVitamin B 12 deficiencyIron deficiency  <response>: In case of patients undergoing paial gastrectomy, postoperatively supplemented with vitamin B12 to avoid associated deficiency manifestations due to loss of gastric mucosa. Ref: SRB;s manual of surgery,3 rd ed, pg no 757 