下列关于Test类的定义中，正确的是

A．class Test implements Runnable {<br/>public void run(){}<br/>public void someMethod(){}<br/>}
B．class Test implements Runnable {<br/>public void run();<br/>}
C．class Test implements Runnable {<br/>public void someMethod();<br/>}
D．class Test implements Runnable {<br/>public void someMethod(){}<br/>}