In recommendation to the board of trustees, a tuition increase of \$500 per year, the President of the university said "There were no student demonstrations over the previous increases of \$300 last year and $200 the year before". If the President's statement is accurate, then which of the following can be validly inferred from the information given:

I. Most students in previous years felt that the hikes were justified because of increased operating costs. II. Student apathy was responsible for the failure of students to protest the previous tuition hikes. III. Students are not likely to demonstrate over new tuition hikes.