583 - Logical Reasoning

Smoking in bed has long been the main cause of home fires. Despite a significant decline in cigarette smoking in the last two decades, there has been no comparable decline in the number of people killed in home fires.
Each one of the following statements, if true over the last two decades, helps to resolve the apparent discrepancy above EXCEPT:

1. Compared to other types of home fires, home fires caused by smoking in bed usually cause relatively little damage before they are extinguished.
2. Home fires caused by smoking in bed often break out after the home's occupants have fallen asleep.
3. Smokers who smoke in bed tend to be heavy smokers who are less likely to quit smoking than are smokers who do not smoke in bed.
4. An increasing number of people have been killed in home fires that started in the kitchen.
5. Population densities have increased, with the result that one home fire can cause more deaths than in previous decades.