William Seltzer identified three different types of ethical issues raised by data mining: (a) the suitability and validity of the methods employed in any given data mining application, (b) the degree to which confidentiality and privacy obligations are respected, and (c) the overall aims of a given data mining application. Analyze how a supermarket can apply these ethical standards with regards to its point-of-sale (POS) application and affinity card program. Write a multi-paragraph response.