An online household store which sells various type of household products is looking into the possibility of investing in data mining applications but is unsure of the potential benefits and issues brought about by such applications. The household store already had a huge repository of data stored in a data warehouse, but this data is yet to be put into good use. The household store has requested your expertise as a database consultant to shed some light in this area. Your presentation to the household store management should address the following aspects: a) Describe TWO (2) characteristics of the data stored in the data warehouse; and how do they differ from the data in the transaction database?( 8 marks) b) Briefly discuss THREE ( 3 ) applications of data mining which would benefit the household store. ( 6 marks) c) Describe with appropriate examples, TWO (2) potential problems the household store may face with data mining. (6 marks) (Total: 20 marks)