Question can be restated as is XY > X + Y or X > X/Y + 1 or (X-1) > X/Y
Now take 2 Scenarios, X=1, Y=1, condition satisfied
X=2, Y= 4, condition not satisfied.
So this statement cannot asnwer the question.
Again take 2 scenarios, X=1.1, Y=1.2, condition is not satisfied.
X=1.1, Y=100, condition is satisfied
So again this statement cannot answer the question.
Now combining both the statements:
Take 2 scenarios X=2,Y=3, condition is satisfied.
X=2, Y=100, condition is satisfied.
So both together can Answer it. Answer is C.