What is augmented reality?

Question $10$ options:

A$)$

the viewing of the physical world with computer$-$generated layers of information added to it

B$)$

a work environment that is not located in any one physical space

C$)$

a wearable computer with an optical head$-$mounted display $($OHMD$)$

D$)$

uses technology allowing humans to interact with a computer through bodily sensations and movements