When using margin to invest in equities, which of the following defines initial margin and what level will the margin be brought back to in the event of a margin call Initial margin Margin call action（）①A. amount of borrowed funds in the transactionsa deposit must be made to bring the margin back to the initial margin ②B. amount of borrowed funds in the transactionsa deposit must be made to bring the margin back to the maintenance margin ③C. minimum amount of equity required of the investor a deposit must be made to bring the margin back to the maintenance margin
A. ①
B. ②
C. ③
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