Which of the following elements must be established to create an implied-in-fact contract?
A) A plaintiff provided a property or services gratuitously.
B) A plaintiff made a defendant sign a contract and then changed its terms, calling the new terms "previously implied."
C) A defendant was given an opportunity to reject a property or services provided by a plaintiff but failed to do so.
D) A defendant accepted a property or services offered by a plaintiff as a fee for an illegal activity.
