Mark and Addison formed a partnership. Mark received a 25% interest in partnership capital and profits in exchange for land with a basis of $40,000 and a fair market value of $60,000. Addison received a 75% interest in partnership capital and profits in exchange for $180,000 of cash. Three years after the contribution date, the land contributed by Mark is sold by the partnership to a third party for $76,000. How much taxable gain will Mark recognize from the sale?

a. $0

b. $9,000

c. $24,000

d. $36,000

e. None of the above