若有以下程序 #include void fun(int a[ ], int n) { int t, i, j; for ( i=0; i a[j] ) { t=a[i]; a[i]=a[j]; a[j]=t; } } main() { int c[10]={10,9,8,7,6,5,4,3,2,1},i; fun(c, 10); for ( i=0; i<10; i++ ) printf("%d,", c[i]); printf("\n"); }则程序的输出结果是

A. 1,10,3,8,5,6,7,4,9,2,
B. 10,9,8,7,6,5,4,3,2,1,
C. 10,1,8,3,6,5,4,7,2,9,
D. 2,9,4,7,6,5,8,3,10,1,