On July 1 of the current year, Bertram acquired a 25 percent interest in Sycamore Company, a partnership, by contributing property with an adjusted basis of $7,000 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. $12,000
b. $1,000
c. $7,000
d. $0
e. None of these choices are correct