Cassandra Corporation, a manufacturing company, periodically invests large sums in investment (debt and equity) securities. The investment policy is established by the investment committee of the board of directors, and the treasurer is responsible for carrying out the investment committees directives. All securities are stored in a bank safe-deposit vault. The independent auditors internal control questionnaire with respect to Cassandras investments in debt and equity securities contains the following three questions: Is investment policy established by the investment committee of the board of directors? Is the treasurer solely responsible for carrying out the investment committees directives? Are all securities stored in a bank safe-deposit vault? Required In addition to these three questions, what questions should the auditors internal control questionnaire include with respect to the companys investments in debt and equity securities?