Which of the Following Is/are Elements of a Derivative

Which of the following is/are elements of a derivative?

A) Many derivatives require no initial investment, that is, no initial cash payment to the counterparty.
B) A derivative may have zero initial cost, but potentially large positive or negative fair values later.
C) Both U.S.GAAP and IFRS require that firms record derivatives at their fair values on the balance sheet date.
D) The firm usually acquires a derivative by exchanging promises with a counterparty, such as a commercial or investment bank.The exchange of promises is a mutually unexecuted contract.
E) all of the above