Which statement is true about the classes and interfaces in the exhibit？（） 
（单选题）
Click the Exhibit button. 
Which statement is true about the classes and interfaces in the exhibit？（）
ACompilation will succeed for all classes and interfaces.
BCompilation of class C will fail because of an error in line 2.
CCompilation of class C will fail because of an error in line 6.
DCompilation of class AImpl will fail because of an error in line 2.
正确答案
答案解析
略
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