Introducing Sonia, Aamir says, 'She is the wife of only nephew of only brother of my mother.'
How is Sonia related to Aamir?
I. Wife
II. Sister
III. Sister-in-law
IV. Data is inadequate

Question: 以下哪项是正确的？
Options:
A. IV 或 II, B. 仅 IV, C. I 为真, D. II 或 III, E. 仅 II
Answer: C
True statement: I