- AEither statement alone is sufficient
- BBoth statements together are needed (neither alone is sufficient)
- CStatement I alone is sufficient but Statement II alone is not
- DStatement II alone is sufficient but Statement I alone is not
Step-by-Step Solution
Statement II directly states Y is east of X, answering the question. Statement I only mentions Z and says nothing about Y.
Answer: D) Statement II alone is sufficient but Statement I alone is not