Required: 1. For each case, identify the principle(s) of internal control that is violated. a. Chi Han receives all incoming customer cash receipts for her employer and posts the customer payments to their respective accounts. b. Marker Theater has a computerized order-taking system for its tickets. The system is backed up once a year. c. To ensure the company retreat would not be cut, the manager of Lavina Company decided to save money by canceling the external audit of internal controls. d. Nori Nozumi posts all patient charges and payments at the Hopeville Medical Clinic. Each night Nori backs up the computerized accounting system but does not password lock her computer. e. At Tico Company, Julia and Trevor alternate lunch hours. Julia is the petty cash custodian, but if someone needs petty cash when she is at lunch, Trevor fills in as custodian.