问题
单项选择题
In commodity trading, the exchange removes any daily losses from a trader's account and acids any gains to the trader's account. This process is known as :
A．
| A. initial margin. |
B．
| B. maintenance margin. |
C．
| C. marking to market. |
答案
参考答案：C
解析：To safeguard the clearinghouse, commodity exchanges require traders to settle their accounts on a daily basis. Marking to market is when any loss for the day is deducted from the trader's account, and any gains are added to the account.