Preston placed his light truck into service when he purchased it on March 15, 2018. His basis for depreciation was $30,000. He did not claim any section179 expense or bonus depreciation. In 2020, he used the vehicle 75% for business. What is the depreciation for it in 2020? 

a) $3,141 

b) $3,350 

c) $4,320 

d) $7,200