The correct value of m, n, x and y to obtain a balanced equation is?

m B2O3(s) + n HF(l) → x BF3(g) + y H2O(l)

a.
m=1, n=1, x=1 and y=1


b.
m=1, n=6, x=2 and y=3


c.
m=1, n=1.5, x=1 and y=1


d.
m=2, n=12, x=4 and y=6​