Consider the following code snippetfunction output(n) {

Consider the following code snippet

function output(n) 
{
    for(var v in n)
      console.log(v + ": " + n[v] + "\n");
}

What will the above code snippet result ?

1. prints only one property
2. Prints the contents of each property of n
3. prints the address of elements
4. Returns undefined
5. None of these

The above code snippet returns undefined.