The table shows projected profits for all possible combinations of four workers and job waiting processing. Find the optimal pairings in terms of total profits. $($values in thousand pesos$)$

$\backslash$table$[[$Worker$,$Job A$,$Job B$,$Job C$,$Job D$],[$Ada$,500,800,700,900],[$Bob$,250,450,750,900],[$Chot$,550,450,350,650],[$Dolly$,450,200,500,800]]$