The function f has continuous second derivatives, and a critical point at (-6, -3). Suppose fxx(−6, −3) = −6, fxy(−6, −3) = 9, fyy(−6, −3) = 5. Then the point (-6, -3): O A. cannot be determined OB. is a local maximum C. is a local minimum O D. is a saddle point O E. None of the above

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