Concept:A durable asset is one that gives useful service over a long period of time.Explanation:Land in agriculture can be used repeatedly for many years without losing its productive capacity.Its value is not used up in one farming season but is spread across many years.As a result, it is regarded as a fixed or durable asset in agricultural business.Reclamation and being a free gift of nature do not explain why land is durable.Answer:A. its value is realized over several years