QUESTION 4 . 1 POINT Using the First Derivative Test, what are the local extrema for the function s(x) = -3x2 + 24x - 36? Select the correct answer below: There is a local maximum at x = 2 and a local maximum at x = 6. O There is a local minimum at x = 2 and a local minimum at x = 6. O There is a local maximum at x = 4. There is a local minimum at x = 2 and a local maximum at x = 6. There is a local minimum at x = 4