How is P related to N?
I. N is sister of M, who is son. of Q, whose wife is P.
II. M is brother of N and son of Q, whose wife is P.
1) if the data in statement I alone are sufficient to answer the question while the data in statement II alone are not sufficient to answer the question.
2) if the data in statement II alone are sufficient to answer the question while the data in statement I alone are not sufficient to answer the question.
3) if the data either in- statement I alone or in statement II alone 'are sufficient to answer the question.
4) if the data even in both statements I and II together are not sufficient to answer the question.
5) if the data in both statements I and II together are necessary to answer the question.

Explanation

3