Input / Output - Programming

Q1:

Which files will get closed through the fclose() in the following program?
#include<stdio.h>

int main()
{
    FILE *fs, *ft, *fp;
    fp = fopen('A.C', 'r');
    fs = fopen('B.C', 'r');
    ft = fopen('C.C', 'r');
    fclose(fp, fs, ft);
    return 0;
}

A "A.C" "B.C" "C.C"

B "B.C" "C.C"

C "A.C"

D Error in fclose()

ANS:A - "A.C" "B.C" "C.C"

Extra parameter in call to fclose().