The correct answer is B. PVC is obtained by the polymerization of vinyl chloride.
Propane is a gas that is used as a fuel. It is not a monomer, which is a molecule that can be linked together to form a polymer.
Styrene is a liquid that is used to make polystyrene, a type of plastic. It is not a monomer that can be used to make PVC.
Acetylene is a gas that is used to make plastics, fibers, and other materials. It is not a monomer that can be used to make PVC.
Vinyl chloride is a liquid that is used to make PVC. It is a monomer that can be linked together to form a polymer.
When vinyl chloride monomers are linked together, they form a polymer called polyvinyl chloride (PVC). PVC is a strong, durable plastic that is used to make a variety of products, including pipes, windows, and flooring.