Which ONE of the Following Cases Sets Out the Rules

Multiple Choice

Which ONE of the following cases sets out the rules relating to when the Civil Division of the Court of Appeal is bound by its own previous decisions?

A) Practice Statement (Judicial Precedent) [1966] 1 WLR 1234.
B) Morelle v Wakeling [1955] 2 QB 379.
C) Young v Bristol Aeroplane [1944] KB 718.
D) R v. Gould [1968] 2 QB 65.