Default risk premium

$1.$ Scanlon Corporation's $5-$year bonds yield $6\mathrm{.}00\%$ and $5-$year T$-$bonds yield $3\mathrm{.}90\%.$ The real risk$-$free rate is r$*=2\mathrm{.}0\%,$ the inflation premium for $5-$year bonds is IP $=1\mathrm{.}50\%,$ the liquidity premium for Scanlon$$s bonds is LP $=0\mathrm{.}4\%$ versus zero for T$-$bonds, and the maturity risk premium for all bonds is found with the formula MRP $=($t $1)\backslash$times $0\mathrm{.}1\%,$ where t $=$ number of years to maturity. What is the default risk premium $($DRP$)$ on Scanlon$$s bonds?

a$.1\mathrm{.}70\%$

b$.1\mathrm{.}80\%$

c$.1\mathrm{.}90\%$

d$.2\mathrm{.}00\%$

e$.2\mathrm{.}10\%$