下面程序段的输出结果是______。class Test{ public static void main（String args[ ]){ MyThread

下面程序段的输出结果是______。 class Test{ public static void main(String args[ ]){ MyThread t=new MyThread()； t.displayOutput("t has been created")； t.start()； } } class MyThread extends Thread{ public void display Output(String s){ System.out,println(s)； } public void run(){ displayOutput("t is running")； } }

A．t has been created t is running

B．t has been created

C．t is running

D．编译错误