The "Initial Margin" on a Futures Contract

Multiple Choice

The "initial margin" on a futures contract:

A) is a cash deposit the buyer places with the seller as good faith money.
B) can be cash or U.S. government securities placed with an exchange member.
C) are U.S. government securities the buyer places with the seller for safekeeping.
D) are the first installment on the payment for a futures contract.
E) is the amount by which the futures contract is initially "in the money."