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Input / Output - Programming

Q1:

Which of the following statement is correct about the program? 
#include<stdio.h>

int main()
{
    FILE *fp;
    char str[11], ch;
    int i=0;
    fp = fopen('INPUT.TXT', 'r');
    while((ch=getc(fp))!=EOF)
    {
        if(ch == '\n' || ch == ' ')
        {
            str[i]='\0';
            strrev(str);
            printf('%s', str);
            i=0;
        }
        else
            str[i++]=ch;
    }
    fclose(fp);
    return 0;
}

A The code writes a text to a file

B The code reads a text files and display its content in reverse order

C The code writes a text to a file in reverse order

D None of above

ANS:A - The code writes a text to a file

This program reads the file INPUT.TXT and store it in the string str after reversing the string using strrev function.