Which one of the following diagrams best depicts the relationship among Black eyed people, Brown haired people, Indian

As per the given above question , we can say that
Some black eyed people may be brown haired and vice-versa.
Some black eyed people may be Indians and vice-versa.
Some brown haired people may be Indians and vice-versa.
Some black eyed and brown haired people may be Indians and vice-versa.
It is clear that option ( A ) represents the best relationship between Black eyed people, Brown haired people, Indian.