The answer is: B: The United States and France became enemies as a result of the XYZ Affair.
XYZ affairs refers to diplomatic problems experienced by united states and France that is caused by the mistreatment of American diplomats by French foreign Minister.
At that time, American diplomats were sent to negotiate with France to prevent wars among them. The french foreign minister that host them told the diplomats that He would only let the negotiation happen if the diplomats gave him a bribe. This cause United States and France became enemies as a result of the XYZ Affair.