In calculating the required return from the CAPM, an analyst finds that an invejstor would earn $1\mathrm{.}5$ percent from holding a six$-$month T$-$bill to maturity. Using this data, the risk$-$free rate in the CAPM should be

$3\mathrm{.}0225$ percent.

$3\mathrm{.}0425$ percent.

$1\mathrm{.}5000$ percent.

$3\mathrm{.}0000$ percent.