Consider the Question and two Statements given below: Question: Is Z brother of X? Statement-1 : X is a brother of Y and Y is a brother of Z. Statement-2 : X, Y and Z are siblings. Which one of the following is correct in respect of the Question and the Statements?

Statement 1: Given that X is the brother of Y, and Y is the brother of Z, we know that all three individuals are siblings. However, the gender of only X and Y is specified. Without knowing whether Z is male or female, we cannot determine whether Z is the brother or sister of X. Statement 2: Simply stating that X, Y, and Z are siblings does not provide information about their genders. Without knowing the gender of Z, we cannot determine whether Z is the brother or sister of X. Combining the two statements does not resolve the ambiguity regarding Z's gender, so we cannot definitively answer the question.