JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap-theme.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
<div class="btn-group-vertical" data-toggle="buttons">
      <label class="btn btn-default">
        <input type="radio" name="options"> <span class="label num" style="font-size:18px; margin-bottom:15px; border-radius:0px;">A</span>Lorem Ipsum is simply dummy text of the printing and typesetting industry.
      </label>
	  
      <label class="btn btn-default">
        <input type="radio" name="options"> <span class="label num" style="font-size:18px;margin-bottom:15px;border-radius:0px;">B</span>Lorem Ipsum is simply dummy text of the printing and typesetting industry.
      </label>
	  
      <label class="btn btn-default">
        <input type="radio" name="options"> <span class="label num" style="font-size:18px;margin-bottom:15px;border-radius:0px;">C</span>Lorem Ipsum is simply dummy text of the printing and typesetting industry.
      </label>

       <label class="btn btn-default">
        <input type="radio" name="options"> <span class="label num" style="font-size:18px;margin-bottom:15px;border-radius:0px;">D</span>Lorem Ipsum is simply dummy text of the printing and typesetting industry.
      </label>

	</div>
	<br / >
	<br / >

	<div align="left">
	<button class="btn btn2 btn-default hidden" id="next_button" name="next">Next</button>
	</div>

CSS

.hidden { display:none; }

JavaScript

$(function(){
    $("input[type=radio]").change(function() {
        $("#next_button").removeClass("hidden");
    });
});