单选题
编号：2692168
1. Which of the following statements about futures margins is least accurate?
- A.The initial margin is set by the clearinghouse based on the volatility of the price of the underlying asset.
- B.If the balance of the margin account exceeds the initial margin requirement,the trader can remove the excess funds from the account.
- C.If the margin account balance falls below the maintenance margin level,the account balance must be brought back up to the maintenance level.