Notifying your individual responders that you are using cookies to track them is easy with LeadQuizzes.
You are able to do this for all of your content pieces or just a few, it's entirely up to you.
All you need to do is:
Create or Edit a piece of content.
Navigate to the Configure section.
Then click Save
***NOTE: You can also change the wording of the notification to your own. Just make sure it is done so in a clear and concise way and that it doesn't mislead your visitors.***