M is father of N who is son of V.
Which statements are needed to know relation of M to P?
1. P is brother of V
2. N's daughter is V's granddaughter
I. Only 1
II. Only 2
III. Either 1 or 2
IV. Both
Question: 以下哪项是正确的？
Options:
A. 非 II
B. 以上各项均不成立
C. 仅 III
D. IV 或 II
E. 非 IV
Answer: A
E
True statement: I