Identify the list of superclasses from the list of pairs below: Manager, Employee
GraduateStudent, Student
BankAccount, CheckingAccount
Vehicle, Minivan
1. Employee, Student, BankAccount, Vehicle
2. Manager, GraduateStudent, CheckingAccount, Minivan
3. Employee, Student, CheckingAccount, Minivan
4. Manager, GraduateStudent, BankAccount, Vehicle