Case: during a recent review, Liberty PLC discovered that it has a serious internal control problem. It is estimated that the impact associated with this problem is 1.8 million and that the likelihood is currently 6%. Two internal control procedures have been proposed to deal with this problem. Procedure X would cost 32,000 and reduce likelihood to 2.5%; procedure Y would cost 55,000 and reduce likelihood to 1.5%. If both procedures were implemented, likelihood would be reduced to 0.2%. Complete the following: a. What is the estimated expected loss associated with Liberty PLC's internal control problem before any new internal control procedures are implemented? b. Compute the revised estimate of expected loss if procedure X were implemented, if procedure Y were implemented, and if both procedures were implemented. c. Compare the estimated costs and benefits of procedure X, procedure Y, and both procedures combined. If you consider only the estimates of cost and benefit, which procedure() should be implemented? d. In general, and apart from the cost, what are the key other considerations which might be relevant to IC utilization decision? (indicate your reference please)