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Verbal·Standard English Conventions·Boundaries
hard
Fernando Palma Rodríguez creates robotic sculptures that combine mechanical elements with materials like feathers, soil, and seeds. The artist is from a rural farming community outside Mexico City, and he studied engineering in college. The natural and mechanical __________ highlight these two aspects of his background.
Which choice completes the text so that it conforms to the conventions of Standard English?
A
materials, that Palma Rodríguez uses in his art
B
materials that Palma Rodríguez uses in his art
C
materials that Palma Rodríguez uses in his art,
D
materials, that Palma Rodríguez uses in his art,