Which of the following is not a difference between futures and forward contracts?

	a.	Futures contracts are marked-to-market daily, while futures contracts are not.
	b.	Buyers and sellers deal directly with each other on forward contracts but go through and exchange with futures contracts.
	c.	Futures contracts are standardized, forward contracts generally are not.
	d.	Delivery rarely occurs on futures contracts but generally occurs with forward contracts.
	e.	All of the above are differences between futures and forward contracts.