What Is the Relationship Between an Appeal and Certiorari

What is the relationship between an appeal and certiorari?

A) Judges must hear all appeals but only some certiorari.
B) A case granted certiorari may be heard in either state or federal court.
C) Appeals are paid for by plaintiffs, certiorari by defendants.
D) Only some appeals are granted certiorari.
E) Appeals are directed to appellate courts, whereas a writ of certiorari is sought from a trial court.