Need some help with this auditing 2 homework. thanks

Customer Servic FUNCTION Customer Complaint IDENTIFY AND DESCRIBE 4 CONTROLS PLACE A HEXAGON [BELOW] BESIDE EACH CONTROL IDENTIFIED Telephone with S/I # ReviewProblem Display Invoice DESCRIBE THE CONTRIOL ON THE SPREADSHEET TITLED 'CONTROLS' A No Prepare Memo Authorize return ? To T/S B Memo C Tech Support 1 2 D # S/I # # # RMA = return materials auth R/R = receiving report S/I = sales invoice C/M = credit memo C/J = crerdit journal P/S = packing slip Customer Service Rece Customer Complaint ReviewProblem Display Invoice Computer terminal RMA# Yes Authorize return ? GiveRMA# Prepare RMA Return Customer RMA Tech Support A 1 B R/R 2 D 2 3 3 Receiving Log C/M # RMA # RMA = return materials authorization R/R = receiving report S/I = sales invoice C/M = credit memo C/J = crerdit journal P/S = packing slip 3 3 # # 2 E Receiving A RMA 2 Customer RMA# # Packing WithSlip goods # # Match P/S, RMA Goods Prepare R/R Packing Slip RMA Receiving Report C 1 Receiving Log 2 1 D 2 3 3 # 3 RMA # # # RMA # Accounting B C RMA 1 Display & Print S/I Receiving report 1 # # S/I copy 1 RMA # # Match docs PrepareC/M Post to C/J R/R C/J 1 1 RMA S/I copy 3 C/M 1 E 2 # 3 Customer 3 3 3 # # 3 3 3 FLOWCHART LOCATION DESCRIPTION MATCH EACH SYMBOL TO FLOWCHART AT CONTROL'S LOCATION A B C D TYPE OF MISSTATEMENT IT CAN PREVENT OR DETECT ASSERTION[S] AFFECTED CONTROL ACTIVITY SEPARATION Authorization Custody Recording