JSFiddle - React, Tailwind, and code Playground

HTML

<select name="DD1" id="DD1">
    <option value="B">B</option>
    <option value="D">D</option>
    <option value="E">E</option>
    <option value="F">F</option>
    <option value="R">R</option>
</select>

JavaScript

window.addEventListener("load", function(){
   var list = document.getElementById('DD1'), el;

   for(var i in list.children){
       el = list.children[i];
       if(el.hasOwnProperty('value')) {
          if(el.value == 'D') {
             el.style.display = 'none';
             break;
          }
       }
   }
}, false);