Question 23 (1 point) The term "initial margin" means Amount of cash that must be added to the account when a broker issues a margin call B) Amount of money borrowed when a security is purchased and paid back when security is sold Amount of cash that must be deposited to open a margin account with a broker and is used to pay fees. The proportion of a transaction's value a customer must D) pay to initiate the transaction, with the remainder borrowed from broker Total loan amunt set up by the brokerage firm, and E) offered to all customer of this brokerage firm. This loan amount is set up by the SEC.