Variable Number of Arguments - Programming

Q1:

What will be the output of the program?
#include<stdio.h>
#include<stdarg.h>
void dumplist(int, ...);

int main()
{
    dumplist(2, 4, 8);
    dumplist(3, 6, 9, 7);
    return 0;
}
void dumplist(int n, ...)
{
    va_list p; int i;
    va_start(p, n);

    while(n-->0)
    {
        i = va_arg(p, int);
        printf('%d', i);
    }
    va_end(p);
    printf('\n');
}

A 2 4
3 6

B 2 4 8
3, 6, 9, 7

C 4 8
6 9 7

D 1 1 1
1 1 1 1

ANS:A - 2 4
3 6

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