Find the relative extrema of the function, if they exist.f(x) = 3x4 + 16x3 + 24x2 + 32
A. Relative minimum at (-2, 48), relative maximum at (0, 32)
B. Relative maximum at (-2, 48), relative minimum at (0, 32)
C. Relative minimum at (-2, 48)
D. Relative minimum at (0, 32)
Answer: D
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