The molecules $\text{N}_2$, $\text{C}_2\text{H}_4$, $\text{CO}_2$ and $\text{CH}_3\text{OH}$ each contain covalent bonds. These bonds are made up of pairs of electrons that are shared. Which row shows the total number of shared electron pairs in the molecules illustrated?
- A$\text{N}_2$: 2
- B$\text{C}_2\text{H}_4$: 6
- C$\text{CO}_2$: 2
- D$\text{CH}_3\text{OH}$: 4