The Sharpe-optimal portfolio is the single combination of specified assets which lies on the _____ and creates the steepest line when graphically connected to the _____. Assume the graph plots the expected return against the standard deviation.

Select one:

a. security market line; risk-free rate

b. security market line; standard deviation

c. efficient frontier; portfolio standard deviation

d. efficient frontier; risk-free rate

e. efficient frontier; market rate of return