only from his father only from his mother from both his father and his mother from either his father or his mother, but not from both
I gave my students this multiple choice question: A son can inherit traits

Only one answer is correct among these 4 choices:
- only from his father
- only from his mother
- from both his father and his mother
- from either his father or his mother, but not from both

Could you tell me which one is correct?

from both his father and his mother