【单选题】
public class SomeException { <br /> } Class a： <br /> public class a { <br /> public void doSomething（） { } <br /> } Class b： <br /> public class b extends a { <br /> public void doSomething（） throws SomeException { } <br /> } <br /> Which is true about the two classes？（） 
A、 Compilation of both classes will fail.
B、 Compilation of both classes will succeed.
C、 Compilation of class a will fail. Compilation of class b will succeed.
D、 Compilation of class a will fail. Compilation of class a will succeed.
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