A student council surveyed students randomly selected from a high school and asked them, "Do you support adding a new art club?" Of those surveyed, percent responded that they support the new club. Based on the results of the survey, which of the following statements must be true?
I. Of all students in the high school, exactly percent support adding a new art club.
II. If another students selected at random from the same high school were surveyed, exactly percent of them would report they support the new art club.
III. If students selected at random from a different high school were surveyed, percent of them would report they support the new art club.
None
I only
II only
I and II only