For each of the following independent cases, fill in the missing amounts in the table: Note: Indicate the effect of each variance by selecting $"$F$"$ for favorable, $"$U$"$ for unf variance$).$

$\backslash$table$[[$Case$,\backslash$table$[[$Direct Labor Rate$],[$Variance$]],\backslash$table$[[$Direct Labor Efficiency$],[$Variance$]],\backslash$table$[[$Direct Labor Spending$],[$Variance$]]],[$A$,$$$,1,750,U,$$$,3,200,$F$,,,],[$B$,$$$,1,000,$F$,$B$,,,$$$,1,500,$U$],[$C$,$$$,2,000,F,1,31,$L$,$$$,3,800,$F$],[$D$,1,,,$$$,1,500,$U$,$$$,4,500,U$