XML newbie Q, selecting xml nodes/elements undefined?

I've been given an assignment to create a JavaScript script that is supposed to read through an xml file.

This is the entire .js file

console.log("Script Connected.");
$(document).ready( function () {
    console.log("DOM Ready.");
    var request = $.ajax(
    {
        type: "GET",
        url: "massEffect.xml",
        data: "null",
        datatype: "xml"
    })
    .done(function( data ) {
    //function to run on successful completion
        var xml = $( data );
        var rootNode = xml.find("conversation");
        var choice1 = rootNode.children();
        // var choices = rootNode.children();
        console.log("massEffect.xml Loaded.");
        console.log(choice1.tagName)
        parseDialogue(choice1);

    });

    function parseDialogue(choice) {
    /*Instructor's comments
    /*You will want to write a function that
    -takes a single <choice> from the XML as an argument and 
    -parses it to list out the dialogue in its <voice> elements into the <div> with the ID “voices”, 
    -parses the description attribute of its <choice> elements into the <div> with the ID “choices”. 

    See index.html for examples of the DOM fragments to build so our CSS styling will work for you.*/
    var voices = choice.tagName;
    var after = choice.eq(1);
    console.log(choice)
    console.log(voices);
   //console.log(voices.children())
  //  console.log(after);
    console.log("function called");
    }

} );

The long XML File simply just follows this format, which is inside the rootNode <conversation>

<choice>

      <voices>

            <voice></voice>

            …

            <voice></voice>

      </voices>

      <after>

            <choices> <!—Having a <choices> element inside <after> is optional -->

                  <choice>

                        <!—This <choice> follows the same structure as the one you’re looking at -->

                  </choice>

            </choices>

      </after>

</choice>

right now as you can see, I'm testing out ways to grab data from the XML file and from the nodes/elements themselves. I've been going through the w3school tags for the nodes and elements and everything pretty much returns an undefined value. except for when i use .children() for the nodes. So I was thinking I've been using the wrong methods this whole time.

Questions and Extra Details:

1.) We have been instructed not to use XMLHTTPREQUEST (every site I come across so far uses this type of request so I cannot tell if my code is right) so I've been going with Ajax, but is everything looking like its in its proper order?

2.)My main Q: why are commands like choice.firstChild, choice.tagName... returning undefined? choice.children() seems to be the only thing working.

http://ift.tt/1lYVu0O http://ift.tt/1tVwA13

If I'm using the wrong methods, can someone provide me with the correct link?