<prompt> The right suprarenal vein drains into the -Inferior vena cavaRight renal veinRight Gonadal veinLeft Renal vein  <response>: Veins draining into inferior vena cava- Common iliac veins- Renal veins- Right gonadal vein- Right suprarenal vein- Inferior phrenic veins- Hepatic veins- 3rd 4th lumbar veins 