Diana likes rock & roll music much better than jazz music, while Sarah likes jazz music much better than rock & roll music. In an indifference curve with rock & roll music CD on the horizontal axis and jazz CD on the vertical axis, then Diana likes rock & roll music much better than jazz music, while Sarah likes jazz music much better than rock & roll music. In an indifference curve with rock & roll music CD on the horizontal axis and jazz CD on the vertical axis, then