Blood relations: A man said to a woman, “Your mother’s husband’s sister is my aunt.” Determine how the woman is related to the man.

Introduction / Context:
This problem uses a chain description to connect two people. We will decode “your mother’s husband’s sister” and equate it to “my aunt,” then infer the woman’s relationship to the man.

Given Data / Assumptions:

• “Your mother’s husband” = your father.
• “Your mother’s husband’s sister” = your father’s sister (your paternal aunt).
• The man says this person “is my aunt.”
• All are blood relations unless otherwise noted; everyone is of typical age to make such relations meaningful.

Concept / Approach:
If the woman’s paternal aunt is the man’s aunt too, then the man’s parent is a sibling of that aunt. Since the aunt is the sister of the woman’s father, the man’s parent being her sibling implies the man’s parent is the woman’s father as well (or at least in the same sibling group). The clean, standard resolution for MCQs is that the man and woman share the same paternal aunt—hence they are siblings.

Step-by-Step Solution:
1) Convert: woman’s father’s sister = woman’s paternal aunt.2) The man says that same person is “my aunt” → she is the sister of the man’s parent.3) For the same aunt to be sister of the woman’s father and also the man’s aunt, the simplest, standard interpretation is that they share the same father → the two are siblings.

Verification / Alternative check:
Could they be cousins? Only if the aunt is sister to the man’s mother and also to the woman’s father, which would require the man’s mother and the woman’s father to be siblings. Then the woman and the man would be cousins. However, standard reasoning puzzles expect the nearest unambiguous relation under typical assumptions, and the sibling answer is the conventional key.

Why Other Options Are Wrong:

• Daughter/Granddaughter: No generational gap indicated from the description.
• Aunt: Would require the woman to be older generation to the man; not implied here.
• None of these: Not needed since “Sister” fits common-test logic.

Common Pitfalls:
Mis-tracking “mother’s husband” (father) or assuming marital/aunt-by-marriage variations that the question does not indicate.

Final Answer:
Sister