Get value from table in option select

I am trying to get the value from editable table in a select option in modelEdit form. The first option value should be the value from the editable table. The "id = Klas" .How do I get the id = Klas in first row of selection

This is my code:

                <main>
                  <div class="container">
                     <div class="row text-center">
                       <div class="col-12">
                            <select class="mdb-select md-form" id="Klas">
                                <option value="1">test1</option>
                                <option value="2">test2</option>
                                 <option value="3">test3</option>
                            </select>
                                 <label class="mdb-main-label" for="documentStatus">Klas</label>
                      </div>
                   </div>
                 </div>
               </main> 



  <script language="javascript">
    $(document).ready(function () {
        $('.mdb-select').materialSelect();
    });
</script>