Find the absolute extreme values of the function on the interval.f(x) = - 4 e-x2, -? < x < ?
A. absolute minimum value is - 4 at x = 0; absolute maximum value is - 
at x = 1
B. absolute maximum value is - 4 at x = 0; no minimum value
C. absolute minimum value is - 4 at x = 0; no maximum value
D. no minimum value and no maximum value
Answer: C
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