Farmer Joe owns farmland along a busy highway. Farmer Joe originally paid $$500,000$ for this land. The land sat on top of a

reservoir of oil, which when pumped out resulted in total depletion expenses to Farmer Joe of $$125,000.$ The farmland currently

has a value of $$600,000$ if it is used as farmland; however, a developer who wants to build a shopping plaza on the farmland has

offered Farmer Joe $$850,000$ for the farmland. What is the fair value of the farmland?

A$.$ $$375,000$

B$.$ $$500,000$

C$.$ $$600,000$

D$.$ $$850,000$