(Choose 1 answer)
Fill in the blank.
Piet Mondrian's most familiar works are the abstracts of the 1920s and 1930s. They have simple elements
A. black, white, and primary colors only, horizontal and vertical lines.
B. black, white and gray, horizontal and vertical lines.
C. red, blue and yellow, horizontal and vertical lines.
D. black, white, horizontal and vertical lines.
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