单项选择题

下面程序段的运行结果是
  voidmain( )
  
    ihtt,a,b,C;
    a=1;b=2;C=2;
    while(a<b<c)
    t=a;a=b;b=t;c--;
    cout<<a<<","<<b<<","<<C;

A.1,2,0
B.2,1,0
C.1,2,1
D.2,1,1