1.  Questions : How is Manick related to Nisha ?
Statements :

I.  Manick is the only son of Nisha's mother-in-law.
II. Ritu is Manick's only sister.

A. I alone is sufficient while II alone is not sufficient.
B. II alone is sufficient while I alone is not sufficient.
C. Either I or II is sufficient .
D. Neither I nor II is sufficient.
E. Both I and II are sufficient.

Answer: Option A

Explanation:

From I, we know that Manick is the only son of Nisha's mother-in law i. e. Manick is Nisha's husband. However, the relation between Manick and Nisha cannot be deduced from II.