The correct answer is: Grandmother.
Here is a detailed explanation:
- Q’s mother is sister of P and daughter of M.
- S is the daughter of P and sister of T.
This means that Q, P, S, and T are all siblings. M is the mother of Q and P, and the grandmother of S and T.
Option A: Grandmother. This is the correct answer. M is the grandmother of S and T because she is the mother of their parents.
Option B: Father. This is incorrect. M is not the father of S or T.
Option C: Grandfather. This is incorrect. M is not the grandfather of S or T.
Option D: Grandfather or Grandmother. This is incorrect. M is only the grandmother of S and T, not their grandfather.
Option E:
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