Pointing to a photograph, a man said, "She is the daughter of my grandfather's only son." How is the woman related to the man (assuming the man is his grandfather's only son)?
- A. Sister ✓
- B. Cousin
- C. Niece
- D. Daughter
Correct answer
A. Sister
Explanation
The grandfather's only son is the man's own father, so the daughter of the man's father is his sister.