According to Arrow's Condition of Unanimity in a Voting Scheme

According to Arrow's condition of unanimity in a voting scheme, if there is a vote between two options X and Y, ________.

A) and all voters prefer Y to X, then X will be selected
B) and X is preferred to Y by all voters, Y is the political bliss point for all voters
C) and all voters prefer X to Y, then X will be selected
D) and X is preferred to Y, voters have multiple-peaked preferences