In the initial presentation of MMCs' decision relating to the purchase of a new CT scanner, two alternatives were proposed. When a real-options analysis approach was considered, a further two scenarios were proposed. The two additional scenarios were a response to a possible management action to defer the purchase of the CT scanner for one year. Describe two further managerial actions that might arise over the life of the CT scanner and explain how each action may be taken into account in the analysis of the decision to purchase a new CT scanner.