In the Context of State Courts,which of the Following Statements

In the context of state courts,which of the following statements is true of reviewing courts?

A) They only handle cases that cannot qualify for a writ of certiorari.
B) They only render decisions that are consistent with the philosophy of judicial restraint.
C) There has to be at least nine judges in a reviewing court.
D) They are essentially concerned with questions of law.
E) They usually handle diversity of citizenship cases.