Which of the Following Are Necessary for a Precedent to Be

Multiple Choice

Which of the following are necessary for a precedent to be binding? Please select all that apply.

A) The facts must be analogous.
B) The decided case must have been heard in a higher court (or at the same level under certain circumstances) .
C) The precedent must be the ratio of the previous decision.
D) Part of the previous decision must be obiter dicta.