下列程序的功能是在监控台上每隔一秒钟显示一个字符串 Hello ，能够填写在程序中横线位置，使程序完整并能正确运行的语句是( )。 public class Test implements Runnable public static void main (String[ ] args ) Test t =new Test( ); Thread tt= new Thread(t); tt. start( ); public void run ( ) for(; ; ) try __________; catch (__________ e ) System. out. println ( Hello );
A．sleep(1000);
InterruptedException
B．sleep(1000);
InterruptedException
C．Thread. sleep(1000);
RuntimeException
D．Thread. sleep(1000);
InterruptedException