Complete on an EXCEL spreadsheet - show steps/formulas inputted into Excel

You are given the following data for four stocks.

Portfolio	Expected Return	Standard Deviation
A	.10	.20
B	.08	.22
C	.20	.40
D	.18	.35

1a. Plot the risk versus return for each stock with standard deviation on the horizontal axis and expected return on the vertical axis. 1b. Which of the stocks would you not want, if you require greater returns for additional risk? Explain your answer.