Question : How is X related to Y?
Statements :
I. Y says, "I have only one brother".
II. X says, "I have only one sister".
A. I alone is sufficient while II alone is not sufficient
B. II alone is sufficient while I alone is not sufficient
C. Either I or II is sufficient
D. Neither I nor II is sufficient
E. Both I and II are sufficient
Answer: Option D
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