Consumer researchers consider the phenomenon described in the immediately preceding question evidence that consumer do not make decision in a rational fashion. Why is this pattern of choice irrational?

$1.$ Because if consumers were rational, W should always be preferred to Z$,$ regardless of whether X was in the consideration set or not

$2.$ Because if consumers were rational, Z should always be preferred to W$,$ regardless of whether X was in the consideration set or not

$3.$ Because X is irrelevant to this decision.