N is brother of B
N is brother of D
M is brother of B
D is brother of M E. None of these
Answer is Right!
Answer is Wrong!
The correct answer is $\boxed{\text{E}}$.
Statement (i) tells us that $M$ is a brother of $N$. Statement (ii) tells us that $B$ is a brother of $N$. Statement (iii) tells us that $M$ is a brother of $D$.
We know that two people are brothers if they have the same parents. However,
we do not know whether $M$, $N$, and $B$ have the same parents. Therefore, we cannot conclude that $N$ is a brother of $B$, $M$ is a brother of $B$, $D$ is a brother of $M$, or any other combination of these statements.In other words, the information given in the question is not enough to determine whether any of the statements in the answer choices are true.