What Is the Third Question in the Three Main Steps

What is the third question in the three main steps in Fourth Amendment analyses?

A) If the action was a search or a seizure, was it reasonable?
B) Was the law enforcement action compliant with the Bill of Rights?
C) Was the law enforcement action a "search" or a "seizure"?
D) If the action was an unreasonable search, does the Fourth Amendment ban its use as evidence?