X Exchanged Rental Property Worth $40,000 with an Adjusted Basis

X exchanged rental property worth $40,000 with an adjusted basis of $25,000 and no liabilities, for Y's rental property worth $75,000 which had an adjusted basis of $57,000 and which was subject to a mortgage of $40,000.Y also transferred to X $5,000 worth of stock in which Y had an adjusted basis of $3,000.The gains recognized by X and Y, respectively, in this exchange are:

A) $5,000; $18,000
B) $13,000; $22,000
C) $13,000; $20,000
D) $5,000; $20,000