Find all points where the function has any relative extrema or saddle points and identify the type of relative extremum.f(x, y) = e-(x2 + y2 - 8y)
A. Saddle point at (0, 4)
B. Relative maximum at (0, 4)
C. Relative maximum at at (0, 4) and relative minimum at at (0, -4)
D. No relative extremum or saddle points.
Answer: B
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