10. Analyze the following code public class Test { public static void main(Stringl] args) { Object a1 = new AOs Object a2-new Obiect0; System.out.println(al); System.out.println(a2); class A { int x; public String toString0 i return "A's x is " +x; a. The b. When executing Svstem.out.println(al), the toString0 method in the Object class is c. When executing Svstem.out.println(a2), the toString0 method in the Object class is d. When executing Svstem.out.println(al), the toString0 method in the A class is invoked. program cannot be compiled, because al) is wrong and it should be replaced by System.out.println(al.toString0); invoked. invoked