What is aquatint? a. a process of incising an image onto a hard surface such as wood, stone, or a copper plate. b. a type of etching that uses powdered resin that stops the acid from eating away at the surface, creating a tonal effect. c. printmaking process in which an impression is taken from a metal plate on which an image has been etched or eaten away by acid. d. a process in which the artist's makes thousands of little dots that make the grooves to which ink is then applied and held in the grooves.