If $10-$year T$-$bonds have a yield of $6\mathrm{.}1\%,10-$year corporate bonds yield $9\mathrm{.}2\%,$ the maturity risk premium on all $10-$year bonds is $1\mathrm{.}3\%,$ and corporate bonds

have a $0\mathrm{.}4\%$ liquidity premium versus a zero liquidity premium for T$-$bonds, what is the default risk premium on the corporate bond?

a$.3\mathrm{.}10\%$

b$.3\mathrm{.}50\%$

c$.1\mathrm{.}40\%$

d$.4\mathrm{.}80\%$

e$.2\mathrm{.}70\%$