- AStatement I alone is sufficient but Statement II alone is not
- BStatement II alone is sufficient but Statement I alone is not
- CEither statement alone is sufficient
- DBoth statements together are needed (neither alone is sufficient)
Step-by-Step Solution
I directly gives that X is west of Y. II relates Y and Z only and says nothing about X, so it is not sufficient.
Answer: A) Statement I alone is sufficient but Statement II alone is not