JSFiddle - React, Tailwind, and code Playground

HTML

<div class="styleSelect">
    <select class="units" id="select">
        <option value="1">Sve ponude</option>
        <option value="2">1a</option>
        <option value="3">2b</option>
    </select>
</div>
<div class="styleSelect">
    <select class="units" id="change">
        <option value="1" disabled="disabled" selected="selected">Sve ponude</option>
        <option value="2">1c</option>
        <option value="3">2d</option>
    </select>
</div>
<div>
    <ol></ol>
</div>

JavaScript

$(document).on('change', '#change', function(){    
    var val = $(this).val();
    var text = $('option:selected', this).text();    
    $('ol').append('<li data-value="'+val+'">'+text+'</li>');
    $('option[value="'+val+'"]', this).prop('disabled', true);    
});

$(document).on('click','ol li',function(){
    var val = $(this).data('value');
    $(this).remove();
    $('#change option[value="'+val+'"]').prop('disabled', false);
});