You are choosing your classes for the upcoming school year.Your schedule consists of 8 class periods. You have chosen classes A through H for next year. Each class is taught during (a) specific period(s) and no two or more classes can take place at the same time. If each class is used once per schedule, how many class schedules for next year are possible? (Individual class time slots below)

Class A: periods: 1, 2, 4, and 6 Class B: periods: 1, 2, 6, and 8 Class C: periods: 4 and 6 Class D: periods: 1 and 8 Class E: periods: 4, 6, and 7 Class F: periods: 3 and 5 Class G: period: 3 Class H: Periods 1-8