Required 1 Required 2 For each statement (a)(f), identify the internal control principle being applied. \begin{tabular}{l} a. All sales are made on account, with each sale being indicated on a sequentially \\ b. A cashler deposits all customer checks received in the mail, but entries in the cu \\ the accounting department. \\ c. The office receptionist is given the job of handing all customer complaints. \\ d. When a customer has a legitimate complaint about goods sold to the customer \\ send a credit memo to the accounting department to request that the customer's \\ \hline e. The company's inventory is stored in a locked warehouse that is monitored by \\ f. Payments to the company's suppliers are made only after the invoice from the \\ recelving report prepared by cWis warehouse personnel. \end{tabular}