Question #N227

Which choice correctly uses a comma to set off a nonrestrictive clause in the sentence? "The artist whose work is characterized by its vibrant colors and bold brushstrokes, is known for her landscapes."
A. The artist, whose work is characterized by its vibrant colors and bold brushstrokes, is known for her landscapes.
B. The artist whose work is characterized by its vibrant colors, and bold brushstrokes, is known for her landscapes.
C. The artist whose work is characterized by its vibrant colors and bold brushstrokes is known for her landscapes,
D. The artist whose work is characterized by its vibrant colors and bold brushstrokes is known, for her landscapes.