问题如下：
A credit derivative is a derivative contract in which the:
选项：
A.clearinghouse provides a credit guarantee to both the buyer and the seller.
B.seller provides protection to the buyer against the credit risk of a third party.
C.the buyer and seller provide a performance bond at initiation of the contract.
解释：
B is correct.
A credit derivative is a derivative contract in which the credit protection seller provides protection to the credit protection buyer against the credit risk of a third party.
A is incorrect because the clearinghouse provides a credit guarantee to both the buyer and the seller of a futures contract, whereas a credit derivative is between two parties, in which the credit protection seller provides a credit guarantee to the credit protection buyer. C is incorrect because futures contracts require that both the buyer and the seller of the futures contract provide a cash deposit for a portion of the futures transaction into a margin account, often referred to as a performance bond or good faith deposit.
B答案在哪讲过？
