The Underlying Reason Why the Expected Future Price of Gasoline

The underlying reason why the expected future price of gasoline plays an important role in the current price of gasoline is because

A) along the supply chain firms want to hold onto gasoline when they think the price is about to rise and sell it quickly when they think the price is about to fall.
B) the market is overly regulated.
C) the market is governed by two major players.
D) the government is in complete control of the energy market.