Concept:Syllogism: From "All A are B" and "X is A", we infer "X is B".Explanation:Given: All hill stations have a sun-set point.Given: X is a hill station.Therefore, X has a sun-set point. So conclusion I follows.Conclusion II says places other than hill stations do not have sun-set points. This is not stated – the given statements only say all hill stations have them, but do not say only hill stations have them. So conclusion II does not follow.Answer:Only conclusion I follows.