Answer:
Step-by-step explanation:
Based on the information provided, Chester is most likely using oil paint. Oil paint is known for its vibrant hues and slow drying time. Acrylic paint also has vibrant hues, but it dries much more quickly than oil paint. Tempera paint also dries quickly, but it is not known for its vibrant hues. Watercolor paint is translucent and dries quickly, but it is not known for its vibrant hues.