A real risk$-$free rate is currently $-1\mathrm{.}0\%.$ A broker at INV Securities, has given you the following estimates of current interest rate premiums: Inflation: $6\%,$ Liquidity Risk Premium $2\%,$ Maturity Risk Premium $2\%,$ and Default Risk Premium $5\%.$ Based on these data, what is the rate of short$-$term U$.$S$.$ Treasuries?

$1\mathrm{.}5\%$

$4\mathrm{.}0\%$

$3\mathrm{.}0\%$

$5\mathrm{.}0\%$