In the painting "Still Life with Flowers and Fruit" by Claude Monet, the artist uses variety primarily through the different elements in the composition, such as the basket, tablecloth, flowers, and grapes. Each of these components contributes unique colors, shapes, and textures, creating a sense of diversity within the artwork.
If you need to choose one specific element that illustrates this variety, the flowers would be a great choice, as they typically exhibit a range of colors and shapes that enhance the visual interest of the piece. However, it's important to note that all the elements mentioned contribute to the overall variety in the painting.