can we put check form inside a selection tag in bootstrap 4

Yes, you can place a checkbox inside a <select> tag in Bootstrap 4. However, it is not recommended to do so. The purpose of the <select> tag in HTML is to create a dropdown list from which users can select options. Placing a checkbox inside a <select> tag goes against the standard usage and may cause confusion for users.

If you want to provide checkboxes as options for selection, it is better to use a different approach. One option is to use a group of checkboxes, where each checkbox represents an option. You can use the <div> element with the class "form-check" to create a checkbox container, and the <input> element with the type "checkbox" to create the checkbox itself. Here's an example:

<div class="form-check">
  <input class="form-check-input" type="checkbox" id="option1">
  <label class="form-check-label" for="option1">
    Option 1
  </label>
</div>

<div class="form-check">
  <input class="form-check-input" type="checkbox" id="option2">
  <label class="form-check-label" for="option2">
    Option 2
  </label>
</div>

<div class="form-check">
  <input class="form-check-input" type="checkbox" id="option3">
  <label class="form-check-label" for="option3">
    Option 3
  </label>
</div>

By using this approach, you provide a clear and intuitive way for users to select multiple options.