What happened as fish rubbing developed into an art? A The practice remained exactly the same. B It declined as people lost interest in fishing. Some materials used for it changed. D Only the ruling classes could afford to do it.

The correct answer is C. As fish rubbing developed into an art, the materials used for it changed. Fish rubbing is a traditional art form that involves rubbing a pencil or crayon along the scales of a fish to create a detailed image. As this art form evolved and gained popularity, the materials used for fish rubbing also changed. Artists began to experiment with different materials, such as ink, paint, and even metal, to create more vibrant and detailed images. This allowed for greater creativity and expression in the art form.