eBay is interested in finding out what it is about an eBay customer that can help predict if the customer will buy large, moderate or small amounts (in dollars) of pre-owned products. Please recommend a data mining task that should be performed to find out what eBay is interested in and state the selection of all necessary attributes and their roles in the data mining task. Justify the recommendation and state any assumption you make about the attributes and/or attribute values if necessary. Please note that it is possible to find the insights in which eBay is interested via different data mining tasks with different choices of attributes respectively. You only need to specify one. As always, be creative and relevant at the same time.