Q1:

Point out the error in the program?

#include<stdio.h>

/* Assume there is a file called 'file.c' in c:\tc directory. */
int main()
{
    FILE *fp;
    fp=fopen('c:\tc\file.c', 'r');    
    if(!fp) 
      printf('Unable to open file.');        

    fclose(fp);
    return 0;
}

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