A man looks at the photograph of a person X and says "She is the daughter of the husband of only daughter of father of my brother-in-law (Wife's hrother)". How is the person X related to the man?

The correct option is Daughter.

To find the relationship, we can break down the statement made by the man piece by piece, starting from the very end and working backwards:
1. "my brother-in-law (Wife's brother)": This represents the brother of the man's wife.
2. "father of my brother-in-law": The father of the wife's brother is the father of the man's wife (the man's father-in-law).
3. "only daughter of father of my brother-in-law": Since the father-in-law has only one daughter, that daughter must be the man's wife herself.
4. "husband of only daughter...": The husband of the man's wife is the man himself.
5. "daughter of the husband...": This refers to the daughter of the man himself.

Therefore, the person X in the photograph is the man's Daughter.