C + N ? C is the daughter of N
and N - J ? N is the brother of I.
Hence, I is niece of J.
Y x I ? Y is the father of I
Hence, ? K is the uncle of I
and I - Z ? I is the sister of Z
Hence, ? I is the niece of K.
R @ T ? R is the brother of T
Hence, ? Q is the father of T
T * M ? T is the daughter of M
Hence, ? M is the mother of T
Hence, M is the wife of Q.
Q + R ? Q is the father of R
R - T ? R is the brother of T
Hence, ? Q is the father of T
T x K ? T is the daughter of K
Hence, ? Q is the husband of K.
Therefore, P is the mother-in-law of K.
A (Parents) D | | | | B - is - Brother - of - C
Therefore, the brother of the lady is the father-in-law of the person. Hence, the lady is the sister of the person's father-in-law.
Hence, the boy is the brother of Reena or Reena is the sister of the boy.
Hence, the woman is the mother of Abhijit.
From (1), C is the brother B and son of E.
Since, the sex of D and E are not known. Hence (1) is not sufficient to answer the question.
From (2). F is the mother of B. Hence, F is also the mother of A. Hence D is the father of A.
Thus, (2) is sufficient to answer the question.
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