How is X's Mother's Husband's Mother's only grand-daughter related to X?
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Daughter
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Aunt
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Sister
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Cannot be determined
D
Correct answer
Explanation
The relationship cannot be determined from the given information. X's Mother's Husband is X's father. X's Father's Mother is X's paternal grandmother. The grandmother's 'only grand-daughter' could be X herself (if female), X's sister, or someone else entirely - we don't know X's gender or family structure. Insufficient information.