A Target Operating Model (TOM) is a high-level description of how an organisation wants to operate in order to achieve its vision and strategy. It defines what an organisation does, how it does it, who does it, where it does it and why it does it. A TOM can be used in gap analysis to compare the desired situation with the existing situation and identify what needs to change to achieve the desired situation. Therefore, option A is the correct answer, as using a TOM in gap analysis would help to assess how far the organisation's current activities support the desired situation. By comparing the current activities with those defined in the TOM, a gap analysis would help to identify what activities are missing, redundant or inefficient in achieving the desired situation. Option B is not a correct answer, as using a TOM in gap analysis would not help to identify how the organisation should structure itself to support the desired situation. The structure of an organisation is one aspect of a TOM, but not its main purpose. A TOM defines what an organisation does more than how it organises itself. Option C is not a correct answer, as using a TOM in gap analysis would not help to determine which activities in the desired situation are not financially feasible. The financial feasibility of an activity is not determined by comparing it with a TOM, but by conducting a cost-benefit analysis or a business case. Option D is not a correct answer, as using a TOM in gap analysis would not help to establish which stakeholder views will not be reflected in the desired situation. The stakeholder views are not determined by comparing them with a TOM, but by conducting a stakeholder analysis or a CATWOE analysis.