给出下列的不完整的类代码，则下列的哪个语句可以加到横线处 class Person {String name，department；int age；public Person( String n ){ name = n；}public Person( String n，int a ) { name = n；age = a；}public Person( String n，String d，int a ) {_____________department = d；}}
A．Global
B．Private
C．Static
D．Public