The categories

Four, and they are the four everybody else uses, because a visitor who has seen a hundred banners already knows what they mean:

• Necessary — signing in, the basket, and the answer to this banner. Cannot be refused, and does not need consent in the first place.
• Preferences — remembering a language or a layout.
• Measurement — counting visits.
• Advertising — recognising a visitor on other sites.

The banner only offers the ones your site actually uses. That comes from the scan: a site running only Google Analytics is not asked about advertising cookies it does not set.