Charterhouse Services Purchased a Van on January 1,2012,for $56,000

Charterhouse Services purchased a van on January 1,2012,for $56,000.It has an estimated life of 5 years,and an estimated salvage value of $6,000.Charterhouse uses straight-line depreciation.At the end of 2013,Charterhouse revised the estimated life of the asset from 5 years to 6 years.How much was the depreciation expense in the year 2014?

A) $12,000
B) $6,000
C) $9,000
D) $7,500