In the Facts of the Previous Questions,according to the Majority

In the facts of the previous questions,according to the majority in the Batte-Holmgren case,when applying the rational basis test,the "conceivable basis" for a distinction between the places in which smoking is banned or allowed is

A) irrelevant because any legislative classification that exempts a class of persons is constitutional.
B) irrelevant because a rational basis review is satisfied by any plausible policy reason.
C) relevant because an arbitrary classification can be "saved" by promoting a legitimate public interest.
D) relevant because to uphold the ban a court has to agree with the legislature's reason for enacting it.