下面程序的运行结果是( )。#ineludevoid del(char*s){ int i,j;char*a;a=s:for(i=0,j=0;a[i]!='\0';i++){ if(a[i]>='0'&&a[i]<='9'){s[j]=a[i];j++;}s[j]='\0';}}main(){ char*s="aa89gggh";del(s):printf("\n%s",s);}A.1B.2C.3D.4