If P $ Q means P is brother of Q; P # Q means P is mother of Q; P * Q means P is daughter of Q in A # B $ C * D
who is the father?
I. D
II. B
III. C
IV. Data is inadequate

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