Sam's Land Was Condemned for a Sewage Treatment Plant

Sam's land was condemned for a sewage treatment plant.He received $600,000 for the land that had a basis of $650,000.What is his realized and recognized gain or (loss) , respectively, on this involuntary conversion?

A) ($50,000) , ($50,000)
B) ($50,000) , 0
C) $50,000, $50,000
D) 0, 0