Marketing cookies are used to track visitors across websites. The intention is to display ads that are relevant and engaging for the individual user and thereby more valuable for publishers and third party advertisers.

Used by Google Ad Words to re-engage visitors that are likely to convert to customers based on the visitor's on line behavior across web sites.

WC cookie used to make advertising messages more relevant to you. They perform functions like preventing the same ad from continuously reappearing, ensuring that ads are properly displayed for advertisers, and in some cases selecting advertisements that are based on your interests. Used to remember items a user has placed in a shopping cart and ensure that cart functionality works perfectly.
It expires immediately a user leaves the site.