Blake and Ryan form the Poole Partnership. Blake contributes cash of $15,000. Ryan contributes land with an adjusted basis of $10,000 and a fair market value of $21,000. The land is subject to a $6,000 mortgage that Poole assumes. Blake and Ryan both receive a 50 percent interest in Poole. What is Ryan's recognized gain or loss on the contribution?

a.$11,000 loss

b.$5,000 gain

c.$16,000 gain

d.$4,000 loss

e.None of these choices are correct.