JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<select name="paises" id="paises">
  <option value="Argentina">Argentina</option>
  <option value="España">España</option>
  <option value="Estados Unidos">Estados Unidos</option>
  <option value="Alemania">Alemania</option>
  <option value="Brasil">Brasil</option>
  <option value="Nueva Zelanda">Nueva Zelanda</option>
</select>

<div id="result"></div>

JavaScript

$(document ).ready(function() {
    $('#paises').on('change', function(){
    	$('#result').empty().html($(this).val());
    });
});