A panel of 3,000 households is used for data collection. BehaviorScan uses an ID card that captures purchase data for these participants when they present it at the checkout in stores equipped with scanners. This data is then sold to multiple companies. What type of data does this represent?

Iam a german monk and professor of theology. i believe that the catholic church's practice of buying forgiveness of sins through indulgences is wrong. i have translated the bible into german to make it easier for more people to be able to study it. i am here to stand by my writings and i refuse your demand that i recant them