B. and I get you the one who made up this question is dump -_-
B. carbohydrate
C6H12O6 is the formula for sugar, and sugar is a carbohydrate.
Not sure to good to be true
Answer:
Structure. The IVC is formed by the joining of the left and right common iliac veins and brings collected blood into the right atrium of the heart. It also joins with the azygos vein (which runs on the right side of the vertebral column) and venous plexuses next to the spinal cord.
Source: common iliac vein; lumbar veins;
I think the answers are b,d,and e