Shelby Was Recently Found Not Guilty of Strong Arm Robbery

Shelby was recently found not guilty of strong arm robbery when a jury trial ruled in her favor.Moments after the ruling came down,Shelby looked at the jury and said,"I did it and now I am free.Thank you." The jurors were shocked and wanted to change their verdict but could only stare as Shelby laughed on her way out of the courtroom.In a separate case,Shelby was charged and convicted by a jury in a federal court for violation of gun laws.Which of the following is true?

A) Since the incorporation doctrine means that the federal government must follow state laws,the conviction should be overturned.
B) Shelby can appeal her conviction based on the fundamental fairness clause of the Fourth Amendment.
C) Since Shelby never admitted to the crime,she cannot be tried a second time.
D) The prohibition against double jeopardy applies only to the same crime and the same jurisdiction.