Given the uncompleted code of a class:class Person {    String name， department;    int age;    public Person(String n){ name = n; }    public Person(String n，

Given the uncompleted code of a class:class Person {    String name， department;    int age;    public Person(String n){ name = n; }    public Pers

on(String n， int a){ name = n; age = a; }    public Person(String n， String d， int a) {        // doing the same as two arguments version of constructor         // including assignment name=n，age=a        department = d;   }}Which expression can be added at the “doing the same as…” part of the constructor? 

A:Person(n，a);
B:this(Person(n，a));
C:this(n，a);
D:this(name，age);

答案: this(n，a);

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