31.
The answer is: B
Explanation
Let's analyze the given information step by step:
- A and B are the children of M, meaning M is the parent of both A and B.
- M is the mother of A, so M is female (A's mother).
- B is not the son of M, which means B is not male.
- If B is not a son, B must be a daughter (since the only other option is being female).
Thus, B is the daughter of M.
Correct Answer:
B: Daughter and Mother