Alice in the human resources department at the Meta Company is constantly being asked by employees how much is taken out of their pay checks for insurance, taxes, medical, mandatory retirement, and voluntary retirement. "It takes up to a few hours every day," says Alice. She would like a Web system that would allow employees to use a secure logon to view the information. Alice wants the system to interface with health and dental insurance companies to obtain the amount remaining in the employee's account for the year. She would also like to obtain retirement amounts saved along with investment results. Alice has high regard for privacy and wants the system to have employees register and give permission to obtain financial amounts from dental insurance and retirement companies. You are required to: a) Draw and explain in detail a use case diagram representing the activities of the Employee Benefit system. b) From the use case diagram, draw and discuss about the activity diagram representing the activities of the Employee Benefit system.