Final answer:
The right lymphatic duct does not drain the right side of the abdomen; this area is drained by the thoracic duct.
Step-by-step explanation:
The right lymphatic duct is responsible for draining lymph fluid from the upper right side of the body, including the right sides of the head, thorax, and right upper limb into the right subclavian vein. It does not drain the right side of the abdomen, as the lymph from that area and the rest of the lower body is drained by the thoracic duct into the left subclavian vein. The thoracic duct originates in the cisterna chyli and receives lymph from the lower abdomen, pelvis, and lower limbs. Therefore, the correct answer to which area is not drained by the right lymphatic duct is A) Right side of the abdomen.