单项选择题

现有: 
class Bird { 
void talk() { System.out.print("chirp "); }        
} 
class Parrot2 extends Bird { 
protected void talk() { System.out.print("hello ");       
public static void main(String [] args) { 
Bird [] birds = {new Bird(), new Parrot2 () };        
for( Bird b : birds)         
b.talk () ;        
}        
} 
结果是什么 ?()      

A. chirp chirp
B. hello hello
C. chirp hello
D.编译错误

相关考题