[单选题]13. 下面是People和Child类的定义，每个构造方法都输出编号。在执行new Child("c")时，程序的运 行结果是______。
class People{
String name;
public People() {System.out.print(1);}
public People(String name){
System.out.print(2);
this.name=name;
}
}
class Child extends People{
People father;
public Child(String flame){
System.out.print(3);
this.name=name;
father＝new People(name+":F");
}
public Child() {System.out.print(4);}
}
A.312
B.32
C.432
D.132