How to prepare the site for the launch of advertising on FB?

Question

Facebook

I am developing. We gave the contractor the task of setting up and launching ads on facebook using a pixel. As a result, fb wrapped the ad.
The specialist suggested the following:

Since we collect information about users, it is necessary to add the following things to the site:
1. a link to the Terms of use
2. processing of personal data
3. cookies

Naturally, the revision falls on my shoulders.
Has anyone come across? How should all this look? Maybe fb has some special requirements?