Introducing a man, a woman says: “His wife is the only daughter of my mother.” How is the woman related to the man?

Introduction / Context:
We parse a single sentence to identify a direct, in-law relationship. The woman describes a man’s wife in terms of “the only daughter of my mother.”

Given Data / Assumptions:

• “The only daughter of my mother” refers to the woman herself (she is her mother’s only daughter).
• The man’s wife equals that “only daughter.”

Concept / Approach:
Replace the phrase with the woman: “His wife is me.” Therefore, the woman is the man’s wife.

Step-by-Step Solution:
Identify the unique daughter: the speaker (woman).If his wife equals the unique daughter, then his wife is the speaker.Thus, the relation of the woman to the man is “wife.”

Verification / Alternative check:
No other interpretation fits “only daughter” without introducing extra, unstated siblings.

Why Other Options Are Wrong:
They imply different generations or collateral lines that are not supported by the statement.

Common Pitfalls:
Overthinking “only daughter” as someone else; it directly identifies the speaker.

Final Answer:
Wife