<p style="height: 200px; overflow: scroll; margin-bottom: 1.5em; width:30%" class="select">
<input type="hidden" id="typesoflicenses_c_multiselect" name="typesoflicenses_c_multiselect" value="true">
<label><input type="checkbox" name="typesoflicenses_c[]" value="1" id="typesoflicenses_c" title="">Life Insurance</label><br>
<label><input type="checkbox" name="typesoflicenses_c[]" value="2" id="typesoflicenses_c" title="">Securities</label><br>
<label><input type="checkbox" name="typesoflicenses_c[]" value="3" id="typesoflicenses_c" title="">CPA</label><br>
<label><input type="checkbox" name="typesoflicenses_c[]" value="4" id="typesoflicenses_c" title="">Attorney</label><br>
<label><input type="checkbox" name="typesoflicenses_c[]" value="5" id="typesoflicenses_c" title="">Mortgage Broker</label><br>
<label><input type="checkbox" name="typesoflicenses_c[]" value="6" id="typesoflicenses_c" title="">Real Estate</label><br>
<label><input type="checkbox" name="typesoflicenses_c[]" value="7" id="typesoflicenses_c" title="">Enroller</label><br>
<label><input type="checkbox" name="typesoflicenses_c[]" value="8" id="typesoflicenses_c" title="">None</label><br>
</p>

if ($("#typesoflicenses_c[4]").is(':checked')){
         //Disable checkboxes
           $("#typesoflicenses_c[1]").prop('disabled', true);
           $("#typesoflicenses_c[2]").prop('disabled', true);
           $("#typesoflicenses_c[3]").prop('disabled', true);
         //Un-Check all others
           $("#typesoflicenses_c[1]").prop('checked', false);
           $("#typesoflicenses_c[2]").prop('checked', false);
           $("#typesoflicenses_c[3]").prop('checked', false);