What Is an Implied- In- Fact Contract

What is an implied- in- fact contract?

A) A contract that is created when a party's intent to enter into a contract is unclear but the other party relies on a belief that promises have been made.
B) A contract created when one party makes an offer that can be accepted only by performance.
C) A contract created when an offeror provides a benefit to an offeree in a unilateral contract.
D) A contract that is created by a mutual exchange of promises.
E) A contract created when an offeree receives and accepts in silence the benefits of an offered service with reasonable opportunity for rejection and with an understanding some form of compensation will be required.