For each of the following independent cases, state the highest level of deficiency that you believe the circumstances representa control deficiency, a significant deficiency, or a mate- rial weakness. Explain your decision in each case. The company has found it necessary to restate its financial statements for the past two years due to a material overstatement of revenues two years ago (and an equal understatement last year). The errors are due to sales of certain software that allowed the purchasers extremely lenient rights of return. The errors were discovered shortly following the end of the current accounting year. Members of management indicated that the misstatements occurred because they simply didnt know the accounting rules. Now they know the rules and they wont let it happen again.