Consider Two Cars Manufactured by Chevrolet in 2014

Consider two cars manufactured by Chevrolet in 2014.During 2014,Chevrolet sells one of the two cars to Emily for $20,000.Later in the same year,Emily sells the car to Jim for $18,000.The second automobile,with a market value of $19,000,is unsold at the end of 2014 and it remains in Chevrolet's inventory.The transactions just described contribute how much to GDP for 2014?

A) $20,000
B) $37,000
C) $38,000
D) $39,000