See the sensitivity report provided below:

Variable Cells

$\backslash$table$[[$Cell$,$Name,$\backslash$table$[[$Final$],[$Value$]],\backslash$table$[[$Reduced$],[$Cost$]],\backslash$table$[[$Objective$],[$Coefficient$]],\backslash$table$[[$Allowable$],[$Increase$]],\backslash$table$[[$Allowable$],[$Decrease$]]],[$$D$$6,$Television commercials $=$ Number,$1\mathrm{.}818181818,0,20000,5500,11000],[$$D$$7,$Radio commercials $=$ Number,$10,0,12000,1E+30,1000],[$$D$$8,$Newspaper ads $=$ Number,$3\mathrm{.}181818182,0,9000,1222\mathrm{.}222222,3666\mathrm{.}666667]]$

Constraints

$\backslash$table$[[$Cell$,$Name,$\backslash$table$[[$Final$],[$Value$]],\backslash$table$[[$Shadow$],[$Price$]],\backslash$table$[[$Constraint$],[$R$.$H$.$ Side$]],\backslash$table$[[$Allowable$],[$Increase$]],\backslash$table$[[$Allowable$],[$Decrease$]]],[$$H$$6,$TV commercials Actual,$1\mathrm{.}818181818,0,4,1E+30,2\mathrm{.}181818182],[$$H$$7,$Radio commercials Actual,$10,1000,10,3\mathrm{.}888888889,4\mathrm{.}666666667],[$$H$$8,$Newspaper ads Actual,$3\mathrm{.}181818182,0,7,1E+30,3\mathrm{.}818181818],[$$H$$9,$Total ads and commercials Actual,$15,??????,15,2\mathrm{.}8,2\mathrm{.}333333333],[$$H$$10,$Cost $($$$)$ Actual,$100000,1,100000,24000,20000]]$

What is the unknown shadow price$($Yellow box$)?$

$2000$

$3000$

$4000$

$5000$