Provide an appropriate response.If (a, b) is a critical point in the interior of the domain of f(x, y) and if 
then f has a local minimum at (a, b) if I. D > 0 and fxx(a, b) > 0. II. D > 0 and fxx(a, b) < 0. III. D < 0.
A. I, II, and III are all incorrect.
B. Only I is correct.
C. Only III is correct.
D. Only II is correct.
Answer: B
Mathematics
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Provide an appropriate response.Name ?3 using three letters.
A. ?DGE B. ?FGD C. ?EGD D. ?FGE
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