Susan Has Lost Her Appeal in Her State Supreme Court

Susan has lost her appeal in her state supreme court on a matter concerning a question of pure state law. She wishes to appeal to the U.S. Supreme Court. Susan:

A) Can appeal because her case has already been heard in the court of last resort in her state.
B) Cannot appeal because cases arising in state court can never be heard in federal court.
C) Cannot appeal because cases arising in state court can never be heard in the U.S. Supreme Court.
D) Cannot appeal because her case has not yet been heard in a U.S. District Court.
E) Cannot appeal because the U.S. Supreme Court will not hear cases considering questions of pure state law.