Did you forget to insert the picture?
The Answer is a Stela.
Stela is the upright stone that has incised relief on its surface.
Stela used in ancient civilization, this is a stone which is in upright position. Mostly it was used for the indication of graves but it was also used as dedication. The stone which was fashioned by Maya civilization is known as Maya Stelae.
<span>b. it incorporates volume through shading and perspective.</span>
Term definition - a sculpture that creates or alters the environment for the viewer , as opposed to presenting itself digitally or monumentally before the viewer .
It is not universally accepted by all artist and critics bcs it is a new concept and needs more time to develop .
Hope this helped !