Thoracic duct opens into:: (A) Subclan vein, (B) Internal jugular vein, (C) Right brachiocephalic vein, (D) Left brachiocephalic vein
Answer is D. Thoracic duct is continuation of cysterna chyli. It passes through aoic hiatus beginning at lower border of T12 . At T5 it crosses to left side andopens into the left venous (jugulo-subclan) angle - junction of the left internal jugular and subclan vein, at the beginning of left brachio-cephalic vein.