I believe that the answer is d.
I studied this quite a while ago, and I know that they didn't use bright colors. They also use geometric shapes. They don't cover floors or walls, so a, b, and c are incorrect. Therefore, the answer is d.
Have a great day :)
I think the anwser is A
Answer:
.
Explanation:
He wanted to work slowly over a number of years, and so he applied his pigments to a dry plaster wall
