What is the result (compile-time error, run-time error, no error) of line 11? 1 public interface IInterface {} public class A implements IInterface {...} public class B implements IInterface {...} public class Main { 1234 2 3 4 6 7 8 9 10 11 12 13 } public static void main(String[] args) { IInterface a = new A(); IInterface b = new B(); A a2 = a;