The correct answer is: Only conclusion I follows.
The first statement is an “all” statement, which means that it is true for all members of the group. The second statement is a “some” statement, which means that it is true for some members of the group.
The first statement does not tell us anything about places other than hill stations. It is possible that places other than hill stations have sun-set points, and it is also possible that they do not. Therefore, conclusion II does not follow.
The second statement tells us that X is a hill station. Since all hill stations have a sun-set point, we can conclude that X has a sun-set point. Therefore, conclusion I follows.
In conclusion, only conclusion I follows.