Which of the following are true statements about futures contracts (mark all that are true)?

( ) futures contracts are the right, but not the obligation, to buy or sell the commodity in the future

( ) a person who enters an exchange-traded futures contract to sell on a certain date still has substantial counterparty risk because there may not be a buyer for that contract

( ) when a person enters a futures contract to buy, they must immediately deposit in their account the full purchase price for all of the future commodity specified in the contract

( )you can enter a futures contract to sell first, before you enter a futures contract to buy; you do not have to enter the buy contract first