The limiting traffic load could normally be found by subtracting DOM and fuel from each limit. In this case, however, there is no DOM given so traffic load calculations cannot have any bearing on the answer. It must be a fuel thing or a structural limit.
The first contender is the structural TOM, 146000kg, too easy?
A second is the MZFM plus fuel at take-off.... 86300 + 27000 + 1350 + 2650 + 3000 = 120300kg
A third is the MLM plus the trip fuel... 93900 + 27000 = 120900Kg
It looks like 120,300kg.