A's father's wife's only daughter is B: how is A related to B

The same question, asked 2 times: 13 Sep 2025 S2, 14 Sep 2025 S3. Every wording below, oldest first.

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Question 1
13 Sep 2025 S2
22 $A's father's wife's only daughter is B. How is A related to B?$
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Question 2
14 Sep 2025 S3
16 $A’s father’s wife’s only daughter is B. How is A related to B? (Assuming A is a male member)$
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