Given the following adjusted trial balance:

$\backslash$table$[[$Cash$,$Debit,Credit$],[$Accounts receivable,$$831,],[$Inventory$,1,049,],[$Prepaid rent,$1,562,],[$Equipment$,43,],[$Accumulated depreciation$-$equipment,$150,],[$Accounts payable,,$26],[$Unearned service revenue,$41,],[$Common stock,,$103],[$Retained earnings,,$3,305],[$Service revenue,,$184],[$Interest revenue,$80,28.],[$Salaries and wages expense,$33,{748}_{?},],[$Travel expense,$$3,{748}_{?},],[,$ Total,,$]]$

a$.$ $$99.$

b$.$ $$184.$

c$.$ $$212.$

d$.$ $$298.$