According to the IEEE $754$ floating$-$point standard, what decimal number is

represented by the $32-$bit word with hex value c$0500000?$

Remember that, for $32-$bit numbers, the exponent bias is $127.$

$($a$)-1\mathrm{.}625$

$($b$)-1\mathrm{.}25$

$($c$)-2\mathrm{.}5$

$($d$)-3\mathrm{.}25$

$($e$)-5\mathrm{.}75$