Keach Company Traded Machinery with a Book Value of $285,000

Keach Company traded machinery with a book value of $285,000 and a fair value of $270,000.It received in exchange from Marlin Company a machine with a fair value of $300,000.Keach also paid cash of $30,000 in the exchange.Marlin's machine has a book value of $285,000.What amount of gain or loss should Keach recognize on the exchange?

A) $30,000 gain
B) $ -0-
C) $1,500 loss
D) $15,000 loss