The return on $3-$month Treasury bills is $3\mathrm{.}5\%.$ What interest rate would XYZ$,$ Inc. expect to pay on a $10-$year bond if it faced a $4\%$ default risk premium and a maturity risk premium of $1\mathrm{.}5\%?9\%$

$($a$)$ What would you expect the rate on a $10-$year Treasury bond would be$?5\%$

$($b$)$ If inflation $=1\mathrm{.}4\%,$ what is the real risk$-$free rate of return? $2\mathrm{.}1\%$

$($c$)$ If inflation $=1\mathrm{.}4\%,$ what are the real rates of return on the corporate bond and the $10-$year Treasury bond? $7\mathrm{.}6\%$ and $3\mathrm{.}6\%$