Robert Trades an Office Building Located in Tennessee to John

Multiple Choice

Robert trades an office building located in Tennessee to John for an apartment complex located in New Jersey.Details of the two properties:
In addition,John pays Robert $3,000,000 cash as part of this transaction.What is the gain (loss) recognized by Robert in this transaction and what is his basis in the New Jersey property?
Gain Recognized Adjusted Basis

A) $6,000,000 $4,000,000
B) $5,000,000 $3,000,000
C) $3,000,000 $2,000,000
D) $5,000,000 $4,000,000
E) Some other amounts