of works such as the red room, henri matisse said it should be "a mental soother, something like a good armchair in which to rest." this is because matisse's primary concern was to

The correct answer is create a pleasing pattern.
Henri Matisse was a French artist, mostly known during the Fauvism and Modernism eras (19th and 20th centuries). He is famous for his use of color, which easily blend into each other in order to create a fluid and soothing image, which was one of his goals when it came to painting. Take a look at his self-portrait below.

3. i would say one, but one is not prime nor composite.