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Is T grandmother of Q? I. P is the mother Q. Q is the son of R. R is the son of T. II. L is father of N and N is daughter of T.

if the data in statement I alone is sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question.
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.
if the data either in statements I alone or in statement II alone are sufficient to answer the question; and
if the data given in both the statement I and II together are not sufficient to answer the question; and

Correct Answer:

Explanation:

In I, Sex of T is not known. In II, Q does not figure. Hence we need both the statements to establish the relationship.

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