On July 1,2013,Bertram Acquired a 30 Percent Interest in Sycamore

On July 1,2013,Bertram acquired a 30 percent interest in Sycamore Company,a partnership,by contributing property with an adjusted basis of $6,000 and a fair market value of $12,000.The property was subject to a mortgage of $8,000,which was assumed by Sycamore Company.What is Bertram's basis in his partnership interest in Sycamore Company immediately after the partnership contribution?

A) $400
B) $3,600
C) $6,400
D) $8,400
E) None of the above