Three portfolios have the following expected returns and risk:PortfolioExpected return Standard deviation

Jones $4\%$

$6\%$Kelly

Lewis $7\%$

$2\%$

$5\%$

$8\%$

A risk$-$averse investor choosing from these portfolios could rationally select:

O Jones.

O Kelly.

O Lewis.

O Jones or Kelly, but not Lewis

O Kelly or Lewis, but not Jones.

O any of these portfolios.