A business case could present the following three options?

 Do nothing. This is also referred to as the “business as usual” option. Selection of this option results in the project not being authorized.  Do the minimum work possible to address the problem or opportunity. The minimum may be established by identifying the set of documented criteria that are key in addressing the problem or opportunity.  Do more than the minimum work possible to address the problem or opportunity. This option meets the minimum set of criteria and some or all of the other documented criteria. There may be more than one of these options documented in the business case.