Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

A credit derivative is a derivative contract in which the:
Option A:clearinghouse provides a credit guarantee to both the buyer and the seller.
Option B:seller provides protection to the buyer against the credit risk of a third party.
Option C:the buyer and seller provide a performance bond at initiation of the contract.

Answer: B