Antifreeze is made from a blend of water and ethylene glycol. Their displayed formulae are shown in the diagram. What is the molecular formula for ethylene glycol?
- A$\text{CHO}$
- B$\text{C}_2\text{H}_6\text{O}_2$
- C$\text{C}_2\text{H}_8\text{O}_3$
- D$\text{C}_6\text{H}_{18}\text{O}_6$