QUESTION 16

QUESTION 16 
Given: 
 
1. class TestA { 
2.     public void start() { System.out.println("TestA"); } 
3. } 
4. public class TestB extends TestA { 
5.     public void start() { System.out.println("TestB"); } 
6.     public static void main(String[] args) { 
7.         ((TestA)new TestB()).start(); 
8.     } 
9. } 
What is the result? 
 
A. TestA 
B. TestB 
C. Compilation fails. 
D. An exception is thrown at runtime. 
Solution : B