Critical Reasoning

Virtually all health experts agree that second-hand smoke poses a serious health risk. After the publication of yet another research paper explicating the link between exposure to second-hand smoke and a shorter life span, some members of the State House of Representatives proposed a ban on smoking in most public places in an attempt to promote quality of life and length of lifespan.

Which of the following, if true, provides the most support for the actions of the State Representatives?

A) The amount of damaging chemicals and fumes released into the air by cigarette smoke is far less than the amount released from automobiles, especially from older models.
B) Banning smoking in most public places will not considerably reduce the percent of the population in the state in question that smokes.
C) The state whose legislators are proposing the tough smoking legislation has a relatively high percent of its population that smoke.
D) Another state that enacted a similar law a decade ago saw a statistically significant drop in lung-cancer rates among non-smokers.
E) A nearby state up-wind has the highest number of smokers in the country.

OA is.....[spoiler]...D...but is it not OOS(out of scope).[/spoiler]..........