When assess the performance of a managed portfolio, we run the following regression on the excess returns $(R_p$ and $R_m$ here are excess returns$)$:

$R_p=+R_m+lon$

The estimates are $=3\%,=1,{}_{lon}=0\mathrm{.}1,E(R_m)=10\%,$ and ${}_m=0\mathrm{.}2.$

What is the Sharpe ratio of the managed portfolio $S_p?$

$0\mathrm{.}32$

$0\mathrm{.}71$

$0\mathrm{.}65$

$0\mathrm{.}58$