(a) ABC company database administrator is now considering information appearance in the company database design. Since information is viewed in database in two ways, which way is he working on now? Explain this way briefly. (5 marks) (b) AmaTao is an organisation wishing to investigate its customers purchasing behaviour pattern. It also wishes to find all issues or parties related to its customers. In the viewpoint as AmaTao's information technology consultant, what key concept of database does it require? Briefly explain it. (5 marks) () AmaTao considers using big data for help. This concerns both structured and unstructured data. In this regard, suggest TWO examples of unstructured data. (5 marks) (d) In MS Access, if you wish to store some comments of unknown length and some integers ranging around 20000, what data type should you choose to store the comments and what field size should you use for the integers? (3 marks) (e) In MS Excel, what function should you use if you wish to find the largest value of a group of numbers? (2 marks)