A life-cycle cost (LCC) analysis is being used to help determine whether the purchase of a high-performance heating ventilating and air conditioning (HVAC) system is cost-effective or not. This analysis would customarily consider all of the following except.

Appropriate risk and uncertainty assessments.

Comparison with other measures of economic evaluation.

Cash flows made time-equivalent by converting them to present values.

Customer satisfaction survey responses.

My answer is: Customer satisfaction survey responses.