(3 points) Employee is a derived class of Person, and Worker is a derived class of Employee. Which of the following lines are legal and which are illegal? Person p1 = new Employee (1; Employee e2 = new Person ( ); Employee el = new Object () ; Employee e3 = new Worker () ; Worker s1 = new Person (L); Object ob = new Employee ( );.

1. (3 points) Employee is a derived class of Person, and Worker is a derived class of Employee.
Which of the following lines are legal and which are illegal? Person p1 = new Employee (1;
Employee e2 = new Person ( ); Employee el = new Object () ; Employee e3 = new Worker () ;
Worker s1 = new Person (L); Object ob = new Employee ( );