Anatomy Complete regression of which of the following veins causes this anomaly in the development of IVC (Figure). A Right vitelline vein B Left vitelline vein C Right supra-cardinal vein D Left supra-cardinal vein 💡 Explanation Complete regression of which of the following veins causes this anomaly in the development of IVC (Figure). ✓ Correct Answer: C. Right supra-cardinal vein