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.