I. Observe the following DFD carefully, highlight and explain which operations are not allowed. Briefly explain each of the identified error. [03] [5 Marks) a 2 0 item quantity Customer sor PIN Process-A Process-B Process-D D endunt Verification D2 Accounts data customer 3 Sales Proce88-E BaleDate Users recipt Details A 5.1 5 Weekly Admin request Process-G Process-F Process-H