Answer:
a. crayon etching
The process of creating a crayon etching allows the artist to be creative in color and pattern creation. It also can be used to create a scratchboard type surface with a monotone color.
Explanation:
Crayon etching: A drawing made with crayons, where a heavy coat of black wash is applied. An etching tool is used to create patterns in the ink, removing the ink and allowing the crayon colors to appear. Related terms: Scratch art, scratchboard.
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