Answer: B

Generally speaking, there are three basic functions of the futures market: ①Risk management: Under certain specific assumptions, futures trading can make the risk Transfer and redistribution among investors with different risk preferences, thus helping investors obtain the type and amount of risks they are satisfied with and optimize their risk preferences; ② Price discovery: traders from various places in the futures market bring A large amount of supply and demand information comes in, and the transfer of standardized contracts increases market liquidity. The prices formed in the futures market can truly reflect the supply and demand situation, and at the same time provide a reference price for the spot market, playing the function of "price discovery"; ③Speculation: Speculative trading enhances the liquidity of the market, bears the risk of hedging transaction transfer, and is the guarantee for the normal operation of the futures market.