The correct option is B XeF4
Let us recall the hydrolysis reactions can we?
2XeF2(s)+2H2O(l)→2Xe(g)+O2(g)+4HF(l)
The above reaction easily disqualifies option c and d.
6XeF4(s)+12H2O(l)→4Xe(g)+3O2(g)+2XeO3(s)+24HF(l)
XeF6(S)+3H2O(l)→XeO3(s)+6HF(l)
Hydrolysis of XeF6 is a multi-step process. Initially Xenon oxide tetrafluoride – XeOF4 is formed.
XeF6(s)+H2O(l)→XeOF4(l)+2HF(l)
Followed by
XeOF4(l)+2H2O(l)→XeO3(s)+4HF(l)