Consider the following class definitions.

public class Employee {
    private String name;
    private double salary;
    public Employee() {
        name = "";
        salary = 0.0;
    }
    public Employee(String n) {
        name = n;
        salary = 0.0;
    }
    public Employee(String n, double s) {
        name = n;
        salary = s;
    }
    // Other methods not shown
}

public class Manager extends Employee {
    private double bonus;
    public Manager(String n, double s, double b) {
        /* implementation not shown */
    }
    // Other methods not shown
}

Which of the following code segments, if substituted for /* implementation not shown */, provides a correct implementation for the Manager constructor?

I. super(n, s); this.bonus = b;

II. super(); name = n; salary = s; bonus = b;

III. super(n); this.salary = s; this.bonus = b;