1. public class A { 
2. public void method1（） { 
3. B b=new B（）； 
4. b.method2（）； 
5. // more code here 
6. } 
7. } 
1. public class B { 
2. public void method2（） { 
3.C c=new C（）； 
4. c.method3（）； 
5. // more code here 
6. } 
7. } 
1. public class C { 
2. public void method3（） { 
3. // more code here 
4. } 
5. } 
Given： 
25. try { 
26. A a=new A（）； 
27. a.method1（）； 
28. } catch （Exception e） { 
29. System.out.print（”an error occurred”）； 
30. } 
Which two are true if a NullPointerException is thrown on line 3 of class C？（）

A. The application will crash.
B. The code on line 29 will be executed.
C. The code on line 5 of class A will execute.
D. The code on line 5 of class B will execute.
E. The exception will be propagated back to line 27.