If \( y_n(x) \) is a solution of the differential equation \[ y'' - 2xy' + 2ny = 0 \] where \( n \) is an integer and the prime (\( ' \)) denotes differentiation with respect to \( x \), then acceptable plot(s) of \( \psi_n(x) = e^{-x^2/2} y_n(x) \), is(are)
