Which of the Following Statements Is True of Bankruptcy Judges

Which of the following statements is true of bankruptcy judges?

A) If a dispute falls within a core proceeding, the bankruptcy judge can hear and determine the controversy.
B) If a dispute is not a core proceeding but involves a state law claim, then the bankruptcy judge can act as the district court judge.
C) They are considered to be units of local circuit courts.
D) They are considered to be units of the court of appeals.