Which of the following statements is definitely false, if M is the sister of N and O. T is M's son and U is M's daughter? Choices:
A) N is T's uncle B) O is T's uncle C) N is U's brother D) N is M's brother E) O is M's uncle
Explanation:   All the statements are true except C (N is U's brother), U is M's daughter that makes N her uncle, not brother.   Answer: N is U's brother) Q is T's son
<result>C</result>
Which of the following statements is definitely false, if M is the sister of N and O. T is M's son and U is M's daughter?