Answer:
Historically, buttresses have been used to strengthen large walls or buildings such as churches. Flying buttresses consist of an inclined beam carried on a half arch that projects from the walls of a structure to a pier which supports the weight and horizontal thrust of a roof, dome or vault.
Explanation:
Hope this helps plz give brainliest
It is D I think. Hope I helped
Realism- the artist simply paints what they see from a subject