Portfolio Expected

Return

Standard Deviation

W $9\%21\%$

X $5\%7\%$

Y $15\%36\%$

$34)$ Which one of the following portfolios cannot lie on the efficient frontier as described by

Markowitz?

Z $12\%15\%$

A$)$ Only portfolio W cannot lie on the efficient frontier.

B$)$ Only portfolio X cannot lie on the efficient frontier.

C$)$ Only portfolio Y cannot lie on the efficient frontier.

D$)$ Only portfolio Z cannot lie on the efficient frontier.

E$)$ Cannot be determined from the information given.