Possibly more like:
Q. An aircraft basic empty mass is 3000 kg. The maximum take-off, landing, and zero-fuel mass are identical, at 5200 kg. Ramp fuel is 650 kg, the taxi fuel is 50 kg.
The payload available is:
(A) 1600 kg
(B) 1550 kg
(C) 2200 kg
(D) 2150 kg
They should have given the DOM, not the BEM. They probably just got their acronyms muddled up. Confusing, though.