The correct answer isA. IAM guidance on strategic planning and demand analysis shows that the organization should addresschanges in demand and required service levelsby assessing what those future requirements mean for the asset portfolio, including whether current asset capability, performance, and condition will remain sufficient. The IAM Anatomy notes that forecasting demand and required levels of service is a core input to planning, and IAM strategic-planning material states that the organization should address outputs from demand analysis when determining renewal, enhancement, and maintenance needs.

The other options are weaker because they rely on proxies or narrow triggers rather than the actual service requirement. Maximum age, full depreciation, generic design review, or artificially increasing risk profiles do not directly answer the strategic question of whether the assets can continue to meetfuture functional and service requirements. IAM's approach is capability- and service-led, not age-led or accounting-led.