Which of the following is incorrect?

a.Ratio decidendirefers to the reason for the judge's decision, which can create binding precedent in the future

b.The High Court must follow its own previous decisions due to the principle ofstare decisis

c.An inferior court will only need to follow theratioof a judgement from a superior court if they are in the same jurisdiction and the case is based on similar facts to the case being heard

d.Obiter dictumis persuasive and is not binding