Which of the following statements correctly describes a tactile display (also known as a refreshable braille display)?  

How it works: A refreshable Braille display is an assistive technology device that connects to a computer or smartphone. It uses a screen reader to capture text from the screen and translates it into Braille. Inside the device, tiny electro-mechanical mechanisms (often using piezoelectric crystals) push round-tipped pins up through holes in a flat surface to dynamically form Braille cells. As the user moves their cursor, the pins rapidly lower and raise to update the text in real time.

Why the other options are incorrect:

B is incorrect: While haptic touchscreens exist, standard tactile/refreshable Braille displays rely on physical, mechanical pins rather than localized glass vibrations to read standard Braille characters.

C is incorrect: This describes a screen reader using text-to-speech (TTS) audio software, not a tactile display.