Final answer:
(A) Benefit costs as a percentage of expense is one of the best metrics to measure the fiscal responsibilities of a public-sector agency struggling to meet them.
Step-by-step explanation:
In order to measure the fiscal responsibilities of a public-sector agency and its struggle to meet them, one of the best metrics to consider would be Benefit costs as a percentage of expense. This metric helps analyze the proportion of expenses allocated to retiree benefits in relation to the overall expenses incurred by the agency.
By calculating this percentage, it provides insight into the financial burden of retirement funds and whether they are outpacing the revenues being generated.