In the question two statements are given, followed by three conclusions, I, II and III. Assuming that the information in the statements is true, even if it appears to be at variance with generally established facts, decide which conclusion(s) logically and definitely follow(s) from the information given in the statements.
Statement:
1. Some hills are dunes.
2. No dunes are mountains.
Conclusion
I. Some dunes are hills.
II. Some mountains are hills.
III. All hills are mountains.