What are intervals of concavity of the function f(x) = -2x' + 6x² – 3 ? a. Concave upward on (1, 0) and concave downward on (-o, 1). O b. Concave upward on (-1, co) and concave downward on (-o, -1). | Concave upward on (-o, 1) and concave downward on (1, c0). O d. None of these. e. Concave upward on (-o, -1) and concave downward on (-1, 0).

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A: Option A is correct..