Which of the following is an example of addition polymerization?

Addition polymers are formed by the repeated addition of monomer molecules possessing double or triple bonds. This polymerization is known as additional polymerization.

Teflon is formed by the addition of Tetrafluoroethylene as given below:

${\mathrm{nCF}}_2={\mathrm{CF}}_2\underset{\text{ High pressure }}{\stackrel{\text{ Catalyst }}{⟶}}-{\left[{\mathrm{CF}}_2-{\mathrm{CF}}_2-\right]}_{\mathrm{n}}$

Option B is correct.