The missing info is EF = HI, the last option
what additional info do you need?
Remember that one of the criterions of congruency is SAS.
Side-angle-side.
In this case, we can see that:
ED = GH
So we have one equal side.
And angles H = E
So we have one equal angle.
the missing info that we need, is that the other adjacent side to the equal angle also must be equal in both triangles, so we must have that:
EF = HI
Whcih is the last option.