Question: What was the essential piece Cubist architects explained in their theoretical rules?
Answer: In their theoretical rules, the Cubist architects expressed the requirement of dynamism, which would surmount the matter and calm contained in it, through a creative idea, so that the result would evoke feelings of dynamism and expressive plasticity in the viewer.
A single-select problem: Is the question answered in a satisfactory fashion?

Available options:
[1]. yes.
[2]. no.
[1].