Consider the following.

a$.$ What is the duration of a four$-$year Treasury bond with a $4$ percent semiannual coupon se

b$.$ What is the duration of a three$-$year Treasury bond with a $4$ percent semiannual coupon

c$.$ What is the duration of a two$-$year Treasury bond with a $4$ percent semiannual coupon sel

$($For all requirements, do not round intermediate calculations. Round your answers to $2$ d

$\backslash$table$[[,,],[$a$.,$Duration of the bond,years$],[$b$.,$Duration of the bond,years$],[$c$.,$Duration of the bond,lears$]]$