The full form of PVC is:
a.) Poly Vulcanised Chloride
b.) Pure Vulcanised Chlorine
c.) Poly Vinyl Chloride
d.) None of the above

Hint:. PVC is a polymer that is derived from the monomer 1-chloroethylene. Vulcanization process is mainly used with rubbers. Vinyl compounds are those which have a substituent attached to it next to a double bond.

Complete step by step answer:
The full form of PVC is Poly Vinyl Chloride. It is also sometimes known as polychloroethene. The monomer of PVC is 1-chloroethylene and its chemical formula is ${ CH }_{ 2 }=CH-Cl$. After polyethylene and polypropylene, PVC ranks third among the synthetic plastic polymers that are produced widely around the world.
So, the correct answer is “Option C”.
 Poly Vinyl Chloride is the correct answer.

Additional Information:
There are two basic forms of PVC: The rigid PVC and the flexible PVC.
The rigid form of PVC which is also known as RPVC is used mainly in the construction of doors, windows, and pipes. It can also be used in the production of non-food packaging, cards such as ATM or membership cards, food-covering sheets, and bottles.
The PVCs can also be made flexible and soft by using plasticizers. The plasticizers are the substances that are added to any materials to make them flexible and softer. The flexible PVCs are most widely used in imitation leather, inflatable products, plumbing, flooring, etc. It is also used in the production of canvas with cotton or linen.
Pure PVC is a very brittle solid. Brittle solids are those that can break very easily. PVC in pure form is white and it is insoluble in alcohol. PVCs have a very critical impact on the environment. Among all the plastics, PVCs are the most environmentally damaging plastics. They release various toxic chlorine-based chemicals that build up in the air, water, and food chain.

Note: Don’t confuse PVC with other full forms such as Peripheral Venous Catheter, Permanent Virtual Circuit, Premature Ventricular Contraction, Pixel Visual Core, etc. Here, PVC refers to the polymer only.