The Property of the Independence of Irrelevant Alternatives Refers to Which

The property of the independence of irrelevant alternatives refers to which of the following?

A) If voters for one choice feel more strongly than do voters for another choice,then the aggregation mechanism must be such that the choices are weighted accordingly.
B) If one choice is preferred by all voters,then the aggregation mechanism must be such that this choice is made by society.
C) If choice A is preferred to choice B and choice B is preferred to choice C,then A must be preferred to C.
D) Choices must satisfy the condition that if one choice is preferred to another,then the introduction of a third choice will not change that ranking.