Computing equivalent units is especially important for: (a) goods that take a relatively short time to produce, such as plastic bottles. (b) goods with sustainability implications in their production processes. (c) goods that are started and completed during the same period. (d) goods that take a long time to produce, such as airplanes.

David paid $975,000 for two beachfront lots in coastal south carolina, with the intention of building residential homes on each. two years later, the south carolina legislature passed the beachfront management act, barring any further development of the coast, including david's lots. when david files a complaint to seek compensation for his property, south carolina refuses, pointing to a passage in david's own complaint that states "the beachfront management act [was] properly and validly designed to south carolina's " is south carolina required to compensate david under the takings clause?