JSFiddle - React, Tailwind, and code Playground
HTML
<table class="variations">
<tr>
<td>
<select name="up_options">
<option value="" selected>Select Value</option>
<option value="a">A</option>
<option value="b">B</option>
<option value="c">C</option>
<option value="d">D</option>
<option value="e">E</option>
</select>
</td>
</tr>
</table>
<label class="single_variation"></label>
JavaScript
jQuery(document).ready(function() {
jQuery('.variations select').change(function(){
$(".single_variation").text((jQuery('.variations select option:selected').text()));
});
});