The given question is incomplete as it lacks a group of choices. However, the options associated with the question is as follows:
1. husband and wife
2. parents and children
3. brother and sister.
Answer:
The correct answer would be - 3. brother and sister.
Step-by-step explanation:
Brothers and sisters are the individuals who have definitely the same ancestor that are their parents. while the other options have different ancestry or cant not be definite about their ancestry.
Parents and children share different ancestors as children come from their parents and their parents have come from their parents. similarly, the husband and wife have also different ancestors.