Which of the following statements about the doctrine of precedent is not true?

Question $77$Select one:

a$.$

The doctrine of precedent enables a court to depart from precedent set by a higher court.

b$.$

The doctrine of precedent provides certainty of law and allows ease of decision making by judges.

c$.$

The doctrine of precedent ensures fairness and equity in judicial decision$-$making.

d$.$

The doctrine of precedent protects against variations in decision making by judges.