Click the Exhibit button.  
Given this code from Class B：  
25. A a1 = new A（）；  
26. A a2 = new A（）；  
27. A a3 = new A（）；  
28. System.out.println（A.getInstanceCount（））； 
 What is the result？（）

A. Compilation of class A fails.
B. Line 28 prints the value 3 to System.out.
C. Line 28 prints the value 1 to System.out.
D. Compilation fails because of an error on line 28.
E. A runtime error occurs when line 25 executes.