- AEither statement alone is sufficient
- BStatement I alone is sufficient but Statement II alone is not
- CStatement II alone is sufficient but Statement I alone is not
- DBoth statements together are needed (neither alone is sufficient)
Step-by-Step Solution
From I, J is a parent but the gender is unknown (father or mother). From II, J is the mother of K's sibling, so J is K's mother — sufficient.
Answer: C) Statement II alone is sufficient but Statement I alone is not