Identify the polymer used to obtain LCD screen from following.

Polycarbonate is commonly used in the production of LCD (Liquid Crystal Display) screens, primarily because it is a durable, transparent plastic with excellent optical properties. Polycarbonate is used to make the outer layers of the screen or protective covers due to its high impact resistance and clarity. Here's a brief overview of the other options: - (A) Polyacrylamide: Used mainly in water treatment, paper production, and as a thickening agent; not typically used in LCDs. - (B) Buna-N: A synthetic rubber (nitrile rubber) used for making seals, gaskets, and fuel hoses; not used in LCDs. - (D) Perspex: Also known as acrylic, it's a transparent plastic, but it's more commonly used in optical devices, displays, and lenses rather than LCD screens.