求问大家一道关于forwards与futures的问题： 期货, 远期, 衍生品, futures, forwards

anli

When helping to decide which financial product to use for a given trade, which of the following statements about futures and forwards would a risk manager consider correct?
A. Delivery dates on futures and forward contracts are not specified at the onset of the contract.
B. Forwards carry less credit risk than futures.
C. Maturing commodity futures may not dictate delivery of a greater volume of the underlying asset than what is physically available.
D. Futures and forwards can both be subject to the posting of collateral based on daily valuation.

(Explain this specifically, especially on C if you can, thanks a lot!)