Use the graph of
to identify at which of the indicated points the derivative
changes from negative to positive. 
A) (-1, 2) , (2, 4)
B) (4, 1)
C) (-1, 2) , (2, 4) , (5, 6)
D) (2, 4)
E) (2, 4) , (5, 6)
Correct Answer:
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