Select the correct statement about the function represented by the table. x у 1 7 2 21 3 63 4 189 5 567 A. It is a linear function because the difference between each x and y-value is constant. B. It is an exponential function because the factor between each x- and y-value is constant. C. It is an exponential function because the y-values increase by an equal factor over equal intervals of x-values. D. It is a linear function because the yvalues increase by an equal difference over equal intervals of x-values.