The Study of a Woman's Back was created by B. Henri Matisse. He was the painter who drew a lot of sketches and paintings of women's backs because he was fascinated by them. It cannot be any of the other painters because their styles differed so much: Renoir painted realistic paintings, Duchamp was more of a sculptor, and Seurat used the technique of pointillism, all of the characteristics which are not visible in this painting.
D. 3 beats in the measure because there’s two quarter notes (1 bt each) and two eighth notes (1/2 bt each); second measure has a half note (2 bts) and a quarter note (1 bt).