单选题

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.

正确答案

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