Comparing F(x) and G(x), we can see that
1) F(x) is narrower than G(x)
This implies G(x) is multiplied by a number greater than 1
2) F(x) is above G(x) by 1 unit
This implies vertical shift of , so a 1 is added to G(x).
Among the given options, only option B fulfills these two criteria.
So the answer is option B