HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! worth 50 points and marked brainliest! What is a technique used by French Impressionist painter Claude Monet?

using the camera obscura as a sketch tool, to record landscape compositions


sketching outdoors, before completing the finished painting in his studio


painting a subject multiple times, under different lighting and weather conditions


using thin, transparent paint to create carefully blended tonal values