Explanation:

- The statement is “your mother’s husband’s sister is my aunt.”

- “Your mother’s husband” refers to the woman’s father.

- “Your mother’s husband’s sister” is the woman’s father’s sister.

- The man says this woman is “my aunt,” meaning the woman’s father’s sister is his aunt.

- Therefore, the man is the child of the woman's father’s sibling, making him the woman’s cousin.

- Option 1: Granddaughter - The statement does not imply a grandparent-grandchild relationship.

- Option 2: Daughter - The statement does not imply a parent-child relationship.

- Option 3: Sister - The statement does not imply a sibling relationship.

- Option 4: Aunt - The statement also does not imply an aunt-niece relationship.

- Correct Answer: None of the provided options are correct, as the woman is related to the man as his cousin.