Cheryl and Nina formed a partnership. Cheryl received a 40% interest in partnership capital and profits in exchange for land with a basis of $60,000 and a fair market value of $80,000. Nina received a 60% interest in partnership capital and profits in exchange for $120,000 of cash. Three years after the contribution date, the land contributed by Cheryl is sold by the partnership to a third party for $90,000. How much taxable gain will Cheryl recognize from the sale?

a.	$4,000.
b.	$12,000.
c.	$24,000.
d.	$30,000.
e.	None of the above.