Pointing to a woman, a man said, 'She is the daughter of my father's only daughter.'
How is the man related to the woman?
I. Father
II. Brother
III. Uncle
IV. Son

Question: 以下哪项是正确的？
Options:
A. 仅 I, B. 仅 II, C. 非 II, D. I 或 II, E. 以上各项均不成立, F. II 或 III
Answer: A
C
D
True statement: I