Consider the table of values. x y -2 0 -1 2 0 6 1 12 2 20 3 30 4 42 Select the statement that is true about the table. A. The relationship between the variables in the table is linear because the first differences are constant. B. The relationship between the variables in the table is linear because the second differences are constant. C. The relationship between the variables in the table is quadratic because the second differences are constant. D. The relationship between the variables in the table is quadratic because the first differences are constant.