- ABoth statements together are needed (neither alone is sufficient)
- BEither statement alone is sufficient
- CStatement II alone is sufficient but Statement I alone is not
- DStatement I alone is sufficient but Statement II alone is not
Step-by-Step Solution
From I, D is a child of W but D's gender is unknown. From II, D is female but her parents are not stated. Together, D is W's female child, so D is the daughter of W.
Answer: A) Both statements together are needed (neither alone is sufficient)