1. Figure 3 shows the physical Data Flow Diagram (DFD) for Book Rental System, a web- based system which is managed by the staff at the bookstore. Staff will register new customer and process the book rental and return via the customer and book interface. The system can also generate report for the management and accounting department when required. The staff can also send out monthly and yearly letter to customer, giving them bonus vouchers based on their rental record. The developers identified that the processes can be grouped together in the system component as in Figure 3. A dashed line is drawn around a process or group of processes based on various reasons. The partitioning of the physical DFD is shown as follows: P1 Camer Dades P2 50 Customer Record Produce My Bonus 10 Leer monthly bonus 1 New Customer Form Add new Book Rereacto customer Custorher Yerly Bokus Record Produce yearly bonus Retum Bock 40 letter Screen Custom Details 01 Customer book retum Custer Master File CUSTOMER CUSTOMER Reco Book Rental 1 Book Rental Details Record De Rental File Book Rertal Details MANAGEMENT Customer Customer 70 Ppment Master File Produce 20 Book Record Book Master management anagement Book report Fle Cash Report Barcode Rent Transaction P3 Book Customego Barcode 30 Cash Transion ACCOUNTING Produce Record Cash D2 cash received Transaction report Cash Royaved Report Recept Figure 3: Physical DFD for Book Rental System Based on your observation of the diagram, what is the BEST reason to group processes in Pl? A. Indicates online processes where the records are updated in real-time. B. Indicates an ad-hoc process where it will be generated based on requests. c. Indicates process that involves manual procedures and need authentications. D. Indicates process that requires automated check and validation of other programs