What type of paper is most commonly used for watercolor or ink washes due to its pronounced surface texture?

The correct answer is rough paper, which is specifically designed for watercolor and ink wash applications. It features a pronounced texture that enhances the interaction between the water and pigment, allowing for unique and vibrant effects. When artists use rough paper, they can achieve a variety of textural effects that are appealing in watercolor painting, as the surface helps the paint to pool and spread in interesting ways, contributing to the overall aesthetic of the artwork.

Hot pressed paper is very smooth and tends to absorb less water, making it less suitable for techniques that require more texture. Graphite paper, on the other hand, is used for transferring images and is not intended for watercolor or ink washes. Cold pressed paper (often referred to as NOT paper) has a texture that is between hot pressed and rough, providing some texture but not as much as rough paper, making it less ideal for artists who seek the most pronounced effects. Thus, rough paper is the most suitable choice for watercolor and ink washes due to its distinctive surface qualities.