Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question.
How many sisters does Mala have ?
I. The only brother of Mala's father has only one niece.
II. The son of the husband of Mala's mother has two siblings

Options

A. if the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question
B. if the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question
C. if the data either in statement I alone or in statement Il alone are sufficient to answer the question
D. if the data given in both statements I and II together are not sufficient to answer the question

Answer

A

Explanation

From statement I:
Only brother of Mala.s father `to` Mala.s Uncle.
Mala.s uncle.s only niece `to` Mala herself. So, she has no sisters. So, statement I is sufficient.
From statement II :
Son of the husband of Mala.s mother `to` Mala.s brother. So, Mala.s brother has two siblings.
One of them is Mala herself but other one may be a brother or sister because gender is not known. So, statement II is not sufficient.
Therefore, data in statement I alone are sufficient to answer the given question.