optgroup with all option

问题

my select option group is like

<select multiple class="form-control form-white" data-placeholder="Select Courses">
 <option value="all">All</option>
  <optgroup label="Play School">
    <option value="1">All</option>
    <option value="2">Sec A</option>
    <option value="3">Sec B</option>
 </optgroup>
<optgroup label="Nursery">
    <option value="1">All</option>
    <option value="2">Sec A</option>
    <option value="3">Sec C</option>
</optgroup>

<optgroup label="LKG">
    <option value="1">All</option>
    <option value="2">Sec B</option>

when i click the main option All remain class option group should be empty, if i click the nursery option-group 'All',the remain section like(Sec A,Sec B) will be disable.is it possible through jquery?

来源：https://stackoverflow.com/questions/41241873/optgroup-with-all-option