Question3. (42 points) Consider a company database. Suppose that after the requirements collection and analysis phase, the database designers provide the following description. - Employee Attributes: Name, Id, Address, Gender, Dob and Doj. - Department Attributes: D_no, Name and Location. - Project Attributes: P_No, Name and Location. - Dependent Attributes : D_name, Gender and relationship. - An employee works in only one department but can work on several projects. - Every department must have one manager. - One department has many projects and a project can come under at least one departments. A. Design an ER model to present the above information. B. Change the ER model to include the following: - An employee can be a staff or a faculty. For staff employees we store position. Fo faculty employees we store rank. Only Faculty employees can work on projects