Determine the intervals on which the function is increasing, decreasing, and constant.
A. Increasing on (-?, 4); Decreasing on (-4, ?); Constant on (4, ?)
B. Increasing on (4, ?); Decreasing on (-4, ?); Constant on (-4, 4)
C. Increasing on (-?, 4); Decreasing on (-?, -4); Constant on (4, ?)
D. Increasing on (4, ?); Decreasing on (-?, -4); Constant on (-4, 4)
Answer: D
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