What is the output of the following code: public class 01 { private int x = 55; private int y; public 01 ( ) { this.x = this.x + 1; this.y = this.x ; } public int getx () { return this.x; } public static void main(String[] args) { Q1 ti, t2, t3; t1 = new Q1(); t2 = new Q1 (); t3 = new Q1 ); System.out.print (t1.getX() + "," ); System.out.print (t2.getX() + "," ); System.out.println (t3.getX()); } } Select one: a. 56, 56, 56 b. 55, 55, 55, c. 56, 56, 56, d. Error