I. State the relationships identified in the tables above 3 marks II. You are required to extract the customers' personal information that matches his/her agent and orders. Describe the joins you would use and why. 5 marks III. Write a request for data from multiple tables from the database above. Describe what data will be extracted and the lines of codes you would use to achieve this data. 6 marks IV. Discuss with a colleagues a situation, which you will be, required to create a query using the grouping function, that meets a condition while joining tables from the database above. 5 marks