If an insured has actual cash value coverage, how much would he collect given the following facts? $1.$ Replacement cost of the building is $$200,000,2.$ Replacement cost of the loss is $$30,000,3.$ Estimated total useful life is $30$ years, $4.$ Building has been in use $15$ years. a$.$ $$70,000,$ b$.$ $$45,000,$ c$.$ $$30,000,$ d$.$ $$15,000.$