(1 point) Suppose that f is given for I in the interval [0, 12] by I= 0 4 6 8 10 12 f(I) =-17 -14-13-14-18-20-23 A. Estimate f'(2) using the values of f in the table. f' (2) = B. For what values of c does f'(x) appear to be positive? (Give your answer as an interval or a list of intervals, e.g., (-infinity,8] or (1,5),(7,10) .> C. For what values of c does f' (x) appear to be negative? (Give your answer as an interval or a list of intervals, e.g., (-infinity,8] or (1,5).(7,10) /