Differentiate.f(x) = (3 - 8x)120
A. f'(x) = 960(3 - 8x)119
B. f'(x) = -960(3 - 8x)120
C. f'(x) = 120(3 - 8x)119
D. f'(x) = -960(3 - 8x)119
Answer: D
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