这道题没看懂，主要意思是说啥

问题如下：

Which option combination most closely simulates the economics of a short position in a futures contract?

选项：

A.

Payoff of a long call plus a short put

B.

Profit of a long call plus a short put

C.

Payoff of a long put plus short call

D.

Profit of long put plus short call

解释：

Payoff of the long put = Max[0, K – S(t)] and payoff of short call = -Max[0, S(t) – K] = Min[K – S(t)], such that the combination payoff = K – S(t)

In regard to D, please note: Profit = the payoff – initial investment [net premium]

sometime also profit = payoff – FV (initial investment)