阅读下面程序 import javax.swing.JOptionPane; public class BreakLabelTest { public static void main( String args[] ){ String output=""; stop: { for (int row=1; row＜=10; row++) { for (int column=1; column＜=5; column++ ) { if ( row=5 ) break stop; output+="* "; } output +="\n";} output +="\nLoops terminated normally"; }JOptionPane.showMessageDiaiog( null, output,"用一个标志测试break语句", JOptionPane.INFORMATION_MES SAGE );System.exit( 0 ); } } 程序运行结果是( )。

A．窗口中有5行*****

B．窗口中有5行****

C．窗口中有4行*****

D．窗口中有6行*****