- AEither statement alone is sufficient
- BStatement II alone is sufficient but Statement I alone is not
- CBoth statements together are needed (neither alone is sufficient)
- DStatement I alone is sufficient but Statement II alone is not
Step-by-Step Solution
Statement I narrows arrival to Wednesday or Thursday; Statement II alone leaves many days. Together, excluding Thursday leaves only Wednesday.
Answer: C) Both statements together are needed (neither alone is sufficient)