Q. What is the output of C program?

int fun(char *str1)
{
  char *str2 = str1;
  while(*++str1);
  return (str1-str2);
}
 
int main()
{
  char *str = "GeeksQuiz";
  printf("%d", fun(str));
  return 0;
}

• (A) 10
• (B) 9
• (C) 8
• (D) Random Number