There are three secondary colors as well as primary. Green, purple and orange.
I believe the correct answer is: symbolic.
Architecture is the art and science
of designing and constructing buildings and (some) non-building structures for
practical, aesthetic, and symbolic purposes. Architectural works are often
perceived as cultural symbols as they are identified with the civilization that
build them and as works of art.
Using a process can help boost confidence and help them realize what they should improve.
I may not be right, but I am really sure it is D because the clay looks earthy.
