How is the son-in-law of my wife’s only sister related to my wife’s brother

My mother’s sister’s husband’s only son’s sister is related to me as –

How is my father's brother's only sibling's mother related to my sister's only brother?AuntMother-in-lawSister-in-lawGrandmotherNone of these

How is my father’s sister’s only son’s sister related to me?

Pointing to a lady, a man said, "The son her only brother is the brother of my wife." How is the lady related to the man?Mother's sisterGrandmothermother-in-lawSister of father-in-law

How is my father’s sister’s only son’s sister related to me?NieceCousinSisterAuntNone of these