单选题 Which of the following statements is true of futures contracts?

A、 All futures contracts are bought and sold on organized exchanges and the terms of futures contracts are determined by the buyers and sellers themselves.
B、 The Clearinghouse serves to guarantee the performance of all parties to futures contracts.
C、 Both are true.

【正确答案】 C

【答案解析】Futures contracts are highly standardized and trade on organized exchanges with a Clearinghouse to guarantee performance. All terms of the contracts are determined by the exchange, not by the traders.