单选题

Which of the following statements best describes marking-to-market of a futures contract? At the（）。

A、 end of the day, the maintenance margin is increased for traders who lost and decreased for traders who gained.
B、 conclusion of each trade, the gains or losses from all previous trades in the futures contract are tallied.
C、 end of the day, the gains or losses are tallied to the trader's account.

【正确答案】 C

【答案解析】

Marking-to-market means that, at the end of the day, all gains or losses are tallied to the trader's account.