In Claude Monet's "Woman with a Parasol - Madame Monet and Her Son," the artist is known for using a light and airy palette, primarily featuring cool colors like greens and blues to capture the mood of a sunny day. He also effectively utilized different brushstrokes to create textures, such as in the foliage and the sky.
However, option D, "use warm colors to create anxiety," does not accurately describe Monet's intentions or style in this piece. Instead, the colors convey a sense of tranquility and joy rather than anxiety.
So, the correct answer is: D. use warm colors to create anxiety.