Find All Local Extreme Values of the Given Function and Identify

Multiple Choice

Find all local extreme values of the given function and identify each as a local maximum, local minimum, or saddle point.
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A) f( -10, -8) = 3022, local maximum
B) f(10, 8) = -3026. local minimum; f(10, -8) = -978, saddle point; f(-10, 8) = 974, saddle point; f(-10, -8) = 3022, local maximum
C) f(10, -8) = -978, saddle point; f(-10, 8) = 974, saddle point
D) f (-10, -8) = 3022, local maximum; f(10, 8) = -3026, local minimum