|Question 19Verbal

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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?
materials, that Palma Rodríguez uses in his art
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