Which of the following supports was used by Roman painters for expression?

Roman painters commonly used wooden panels as supports for their paintings. This was because wooden panels provided a smooth and stable surface for painting, and they were also durable and long-lasting. The wood used for panels was typically poplar or lime wood, which was treated with a layer of gesso (a mixture of chalk and animal glue) to create a smooth surface. This surface was then painted with pigments made from natural materials such as minerals, plants, and insects. Using wooden panels as a support allowed Roman painters to create expressive works of art with fine detail and vivid colors. They could also be easily transported, and were often used for portraits, mythological scenes, and still lifes.