单选题：运行如下程序输出为：（ ）。

运行如下程序输出为：（ ）。 @[D](2)
```
public class Test {
public static void main(String[] args) {
new Circle9();
}
}

public abstract class GeometricObject {
protected GeometricObject() {
System.out.print("A");
}

protected GeometricObject(String color, boolean filled) {
System.out.print("B");
}
}

public class Circle9 extends GeometricObject {
/** No-arg constructor */
public Circle9() {
this(1.0);
System.out.print("C");
}

/** Construct circle with a specified radius */
public Circle9(double radius) {
this(radius, "white", false);
System.out.print("D");
}

/** Construct a circle with specified radius, filled, and color */
public Circle9(double radius, String color, boolean filled) {
super(color, filled);
System.out.print("E");
}
}
```
A. ABCD
B. BACD
C. AEDC
D. BEDC




A.ABCD
B.BACD
C.AEDC
D.BEDC


答案：D