Betty Is Investing in the Stock Market

Betty is investing in the stock market.She is choosing among a variety of stocks; each stock has an expected return and a level of risk attached.Betty likes higher returns and she likes risk.If we were to draw indifference curves for Betty over risk and expected return,they would be:

A) L-shaped.
B) linear.
C) upward-sloping.
D) downward-sloping.
E) vertical lines.