Zinger Inc. has a delivery truck which originally cost $23,000. It has a residual value of $5,000. The truck has a total life of 9 years, and was purchased 3 years ago. This year, the truck was used from January 1 until March 31. On April 1, the truck was sold. If Zinger uses the straight-line method, what is the depreciation expense on the truck for this year (the year of sale)?

A) $500

B) $666

C) $1,500

D) $2,000