JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select>
  <option disabled selected>choose</option>
  <option value="answer1">answer1</option>
  <option value="answer2">answer2</option>
  <option value="answer3">answer3</option>
</select>

<div class="answers" id="answer1">
  answer1
</div>
<div class="answers" id="answer2">
  answer2
</div>
<div class="answers" id="answer3">
  answer3
</div>

CSS

.answers {
  display: none;
}

JavaScript

$('select').on('change',function() {
  var answer = $(this).val();
  $('.answers').hide();
  $('#'+answer).show();
})