<!DOCTYPE html>
<html>
<head>
<title>Choose List Task</title>
<!-- stylesheets -->
<link rel="stylesheet" type="text/css" href="../core/core.css">
<!-- JS -->
<script src="../core/core.js"></script>
<script src="../core/d3.v3.min.js"></script>
<script src="../common/ui_utils.js"></script>

<style>
select { margin-top: 5px; height: 90px; }
button { margin-top: 5px; }
</style>

<script>
core.EPISODE_MAX_TIME = 15000; // set episode interval to 15 seconds
var MAX_CHOSEN = 2;
var countries = [];

var correctOpt