A short segment of a polymer formed from two monomers is shown as, $-\text{CH}_2-\text{C(CH}_3)_2-\text{CH(CH}_3)-\text{CH}_2-$. Which two monomers were used to make it?
- Abut-1-ene and propene
- Bbut-2-ene and propene
- Cethene and pent-2-ene
- Dmethylpropene and propene