A single test print made by the artist to see what the image will look like when printed is called a ___.

a. proof
b. etching
c. monotype
d. limited edition
e. lithograph

a. proof

a. Correct. These single test prints are called proofs.
b. Incorrect. An etching is not a single test print; it is a technique of printmaking.
c. Incorrect. Though a monotype is a single image made, it is not a test image, instead it is the work itself.
d. Incorrect. Limited editions are the prints from a single prints series by an artist.
e. Incorrect. A lithograph is a print made by applying grease to a metal or stone surface.