For a 20% Interest in Partnership Capital, Profits, and Losses

For a 20% interest in partnership capital, profits, and losses, Kasi contributes a machine having a basis of $30,000 and an FMV of $40,000. The partnership also assumes a $24,000 recourse liability secured by the machine. The partnership has $6,000 in recourse liabilities immediately preceding Kasi's contributions. Partners share the economic risk of loss from recourse liabilities in the same way they share partnership losses. Kasi's basis in the partnership interest is
A) $10,800.
B) $13,200.
C) $12,000.
D) $30,000.