Question 1Which of the problems associated with data in database design is the most important to organizations? Explain your choice.Your response should be at least 75 words in length.Question 2Databases require both a physical and conceptual model. Compare these models. How do they differ? Your response should be at least 75 words in length.Question 3What is the relevance of data mining in organizations? Your response should be at least 75 words in length.DQ questionClass,Imagine that you are hired as a CIO of a quickly growing retail chain with an online presence. You have growing transactional databases but want to build a business intelligence infrastructure. You also have various departments within your company with databases such as marketing, customer service, accounts payable, sales, and accounts receivable.Two to three paragraphs:1. What would your proposed business intelligence infrastructure consist of?2. Justify your decision, discuss its pros and cons.Please make sure you state the questions before the answers.