For each of the utility functions below classify them into Homothetic , Quasilinear, both or neither. Make sure you briefly explain why you made that choice. (a) u(x1, x2) = min{2x1, x2} (b) u(x1, x2) = x^2 1 + x2 2 (c) u(x1,x2) = ln(x1) + In(x2) (d) u(x1, x2) = 2x1 + x2 (e) u(x1, x2) = -(x1 - 1)^2 – (x2 - 1)^2