Answer and Explanation:
I don't understand your question..
I think it is A. Natural Sculpture, because your question asks about a type of environment sculpture, so pretty sure it is natural from the environment. Hopefully it is right :)
Answer:
A common motive is that creating art in a format which utilizes public space allows artists who may otherwise feel disenfranchised to reach a much broader audience than other styles or galleries would allow.
Street art encompasses many other media, such as LED art, mosaic tiling, stencil art, sticker art, reverse graffiti, "Lock On" sculptures, street installations, wheatpasting, woodblocking, yarn bombing, and rock balancing.
The availability of cheap hardware and software allows street artists to become more competitive with corporate advertisement
Explanation:
