Which two materials did Robert Rauschenberg use? (Select all that apply.) \( \square \) collage materials \( \square \) oil paints \( \square \) clay \( \square \) marble

Robert Rauschenberg was a pioneer of combining various materials in his art, famously using collage materials that included newspaper clippings, fabric, and found objects to create depth and texture in his compositions. His innovative approach broke the conventional boundaries of traditional painting, leading to the emergence of "Combine" works, blending painting and sculpture in a unique way. Along with collage materials, Rauschenberg was also known for his use of oil paints, which he would sometimes combine with other elements to enhance the tactile quality of his pieces. This allowed him to explore the realms of both painting and three-dimensional art, making him a key figure in the transition from Abstract Expressionism to a more mixed-media vocabulary in modern art.