Bootstrap multicheckbox checked attribute

I have a razor view and using bootstrap-multiselect.css. I am showing checkboxes but i cant make checkboxes checked with my code. Thanks for answers.

<select name="@cat.Title" id="catandsubcat" multiple="multiple" class="form-control">
                                @foreach (SubCategoryVM subcat in cat.SubCategoryVM)
                                {
                                    <option value="@subcat.Id" @(Model.Any(x => x.SubCategory_Id == subcat.Id)) : "checked" : ""  }>
                                        @subcat.Title
                                </option>
                            }
                            </select>

My browser renders this.

<li class="checkList active"><a tabindex="0">
<div class="aweCheckbox aweCheckbox-danger">
<input type="checkbox" value="2" id="multiselect-1">
<label for="multiselect-1" class="checkbox">Peyzaj</label>
</div>
</a>
</li>