单项选择题

下面的程序执行后,文件test.txt中的内容是 ( )
  # include<stdio.h>
  void fun(char*<fname,char * st)
   FILE*myf;int i;
   myf=fopen(fname,"w");
   for(i=0;i<strlen(st);i+ +) fputc(st[i],myf);
   fclose (myf);
  
  main( )
   fun("test","new word");
   fun("test","hello");

A.hello
B.new worldhello,
C.new world
D.hello,rld
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