What is the output of the Square program? 

A. 0

B. 2

C. 4

D. The code does not compile due to line x1.

E. The code does not compile due to line x2.

F. The code does not compile due to line x3.

package shapes; abstract class Trapezoid { private int getEqual Sides() {return 0;} } abstract class Rectangle extends Trapezoid { public static int getEqualSides () {return 2;} // x1 } public final class Square extends Rectangle { public int getEqualSides () {return 4;} public static void main(String[] corners) { final Square myFigure = new Square(); System.out.print (myFigure.getEqualSides ()); } } // x2 // x3