You Disagree with Ed "Shifty" Smith,a Car Salesperson,on the Price

You disagree with Ed "Shifty" Smith,a car salesperson,on the price of an open-end lease.He says the depreciation charge is only $6,000.What is the actual depreciation charge for a car now worth $23,000 that is expected to drop in value to $15,000 in two years?

A) $7,000
B) $7,500
C) $8,000
D) $11,500
E) $15,500