public abstract class Shape { private int x; private int y; public abstract void draw(); public void setAnchor(int x, int y) { this.x = x; this.y = y; } } Which two classes use the Shape class correctly?

• public class Circle implements Shape { private int radius;
• public abstract class Circle extends Shape { private int radius; }
• public class Circle extends Shape { private int radius; public void draw();
• None