In Reaching Its Decision, Should a Trial Court of the State

In reaching its decision, should a trial court of the state of Ohio be bound by any of the following if the same issue of law is involved: (a) a written opinion issued by the attorney general, (b) a written opinion of the Ohio Supreme Court involving two dissenting justices, (c) certiorari denied by the U.S.Supreme Court, (d) a written opinion issued by another trial court in Ohio, or (e) a written unanimous opinion of the Supreme Court of California? Explain each.