To insert checkboxes in Word, you need to utilize the Developer tab. If the Developer tab on your machine isn't showing on the Ribbon, follow these steps.
Displaying the Developer tab on the Ribbon
Access File -> Options:

The Word Options dialog appears with the option to select Custom Ribbon -> move to Main Tabs -> check Developer -> OK to display Developer on Ribbon:

2. Insert checkmarks, checkboxes
Step 1: Click where you want to insert Checkbox -> Choose Developer tab -> Legacy Tools -> Checkbox Form Field:

- Similarly insert for the remaining options to get the result:

Step 2: After inserting the checkboxes, you can't tick them yet; you need to edit them. Choose Developer -> Restrict Editing and perform the following selections:
- Editing restrictions:
+ Check the box next to: Allow only read type of editing in the document.
+ In the combobox, select Fillings in Form.
- Click on Yes Start Enforcing protection:

Step 3: A dialog appears to input a password to protect content on the file, allowing users to tick checkboxes -> press OK:

Step 4: Now you can optionally check checkboxes and cannot edit the file's content.

If you want to edit the content again, click on Restrict permission -> a dialog appears to input a password to remove protection mode for editing the file's content:

However, this is a simple way to create checkboxes that users can check for all options.
Above is the guide on how to insert checkmarks, checkboxes into Word. Hope it helps you in creating exams. Wish you success!
