The function $f$ has continuous second derivatives, and a critical point at (-6, 2). Suppose $f_{xx}(-6,2) = 14, f_{xy}(-6,2) = 0, f_{yy}(-6,2) = 15$. Then the point (-6, 2):

A. is a saddle point
B. cannot be determined
C. is a local minimum
D. is a local maximum
E. None of the above