Which of the following definite integrals could be used to calculate the total area bounded by the graph of y = x3 - 3x2 + 2x and the x-axis? a. one half times the integral from 0 to 2 of the quantity x cubed minus 3 times x squared plus 2 times x, dx b. 2 times the integral from 0 to 1 of the quantity x cubed minus 3 times x squared plus 2 times x, dx c. the integral from 0 to 1 of the quantity squared of x cubed minus 3 times x squared plus 2 times x, dx d. the integral from 0 to 2 of the quantity x cubed minus 3 times x squared plus 2 times x, dx