题目：
Which of the following statements is FALSE ()
A. Hedgers trade to reduce some preexisting risk exposure.
B. The clearinghouse guarantees that traders in the futures marker will honor their obligations.
C. If an account rises to or exceeds the maintenance margin, then the trader must deposit variation margin.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：计算字段
