Identify Activity Bases For a major university, select the activity base most appropriate for each cost listed below. An activity base may Cost: 1. Financial aid office salaries 2. Office supplies 3. Instructor salaries 4. Housing personnel wages 5. Employee wages for maintaining student records 6. Admissions office salaries Activity Base: Number of financial aid applications Number of students Student credit hours Number of students living on campus Number of enrolled students and alumni Number of enrollment applications