What technology enables the creation of foldable screens in mobile phones?

Correct option is A

The most common technology used for foldable screens is the OLED (organic light-emitting diode) display, which uses a thin layer of organic compounds to emit light when an electric current is passed through it. OLED displays are thinner, more flexible, and consume less power than traditional LED displays. This makes them ideal for use in foldable screens as they can be bent and folded without damage to the display.

To enable a foldable screen, the display is mounted on a flexible material that allows it to bend and fold without breaking. The screen is then coated with a protective layer to prevent scratches and other damage.