Final Answer:
The layer of the screen that lies closest to the film is c) Protective layer.
Step-by-step explanation:
Protective Layer: The protective layer is the outermost layer of the screen and lies closest to the film. Its primary function is to safeguard the underlying layers and the film itself.
Layers in a Screen: Screens, especially in technologies like CRT (Cathode Ray Tube), may have multiple layers. The protective layer acts as a shield, preventing damage to the internal components and ensuring the longevity of the screen.
Other Layers: While not explicitly mentioned in the options, screens may also include layers like the base layer (supporting structure), phosphor layer (emitting light in CRTs), and reflective layer (in some display technologies).
Understanding the layers of a screen contributes to knowledge about display technologies and their construction.
Thus the correct option is C