Final answer:
To resolve form personalization issues, you should clear the personalization for each form.
Step-by-step explanation:
To resolve the form personalization issues, you should clear the personalization for each form (option C).
This can be done by going to the form and selecting the 'Reset to Default' option. This will remove any customizations or personalizations made to the form.
Clearing the browser cache and site settings (option A) might help if the issues are related to caching, but it won't specifically address the personalization issues.