Marks] 1. Observe the following DFD carefully, highlight and explain which operations are not allowed. Briefly explain each of the identified error. [03] [5 Marks] Customer item quantity Process-A Process-B Terort ID -PIN- Process-D amount Verification 02 Accounts data customerid Sales saleDate- D1 Users Process-E receipt Details 6.1 Admin request- Weekly report Process Process Process-F EXPLAIN ANSWERS HERE