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Is R grand-daughter f C? I: The only sister of A is the mother of R's brother B. II. C, the mother of A, has only one granson B.

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.
if the data in Statements 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 in Statement I alone or in Statement II alone are sufficient to answer the question.
if the data in both the Statement I and II together are not sufficient to answer the question.

Correct Answer:

Explanation:

Using Statement I: C is not in the statement. So using I only we can never find the relation between R and C. Using Statement II: R is not in the statement .So using II only we can never find the relation between R and C.Using both: We can conclude that R is the granddaughter of C.

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Is R grand-daughter f C? I: The only sister of A is the mother of R's brother B. II. C, the mother of A, has only one granson B.

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