Porto-caval anastomosis is seen between -: (A) In the rectum: superior rectal vein and inferior rectal vein, (B) At the umbilicus: portal vein and accessory hemiazyogs vein, (C) At the esophagus: left gastric vein and paraumbilical vein, (D) At the liver: portal vein & renal azygos vein
Answer is A. None