Final answer:
The technique using strokes of color to represent changing light is Impressionism, which is characterized by quick, thick brushstrokes of pure color. The correct answer is Pointillism, a style closely related that uses tiny dots of color.
Step-by-step explanation:
The artistic technique that involves using strokes of color to represent the changing nature of light is known as Impressionism. Impressionist painters created their artworks using short, thick brushstrokes to quickly capture the essence of a subject, focusing on the effects of light.
This was done by painting small patches of pure color next to each other, allowing the viewer's eye to mix them optically. This approach aims to portray a specific atmospheric condition, such as light flickering on water or clouds moving across the sky.
The resulting visual effect is more vibrant than colors mixed directly on a palette. Thus, the correct answer to the question would be Pointillism, which is similar in its use of pure color but applies color in tiny dots rather than brushstrokes.