单选题 The initial margin is the: A. minimum amount of funds that must be supplied when purchasing a security on margin. B. amount of liquidity that must be maintained in a margin account. C. amount of cash that an investor must maintain in his/her margin account.

【正确答案】 A

【答案解析】Margin is the amount of equity in the account at a given time. Initial margin is the amount of equity required initially to execute an order.