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单项选择题

1. public class Employee { 
2. String name; 
3. double baseSalary; 
4. Employee(String name, double baseSalary) { 
5. this.name = name; 
6. this.baseSalary = baseSalary; 
7. } 
8. } 
And: 
1. public class Salesperson extends Employee {
2. double commission; 
3. public Salesperson(String name, double baseSalary, 
4. double commission) { 
5. // insert code here 
6. }
7. } 
Which code, inserted at line 7, completes the Salesperson constructor?() 

    A. this.commission = commission;
    B. superb(); commission = commission;
    C. this.commission = commission; superb();
    D. super(name, baseSalary); this.commission = commission;
    E. super(); this.commission = commission;
    F. this.commission = commission; super(name, baseSalary);

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