The following is excerpted from an article on potential risks associated with spray painting in the automobile industry: In the case-control analyses, cases are defined as all lung cancer deaths among automotive workers (n = 263). Controls are defined as those deaths due to circulatory disease or accidents among those same workers, thus ensuring a valid representation of the population under investigation. In this study, a history of using spray paint was ascertained in cases and controls from company records. What "population" is the one for which we would like to know the proportion of employees who worked as spray painters? Hintconsider what group of people would be the best basis for comparison in order to isolate the potential effect of exposure to spray paint in the automotive industry. Group of answer choices Everyone living in the United States at the time of the exposure Automotive workers at risk of death in the period during which case accrual took place Those at risk of secondhand exposure to spray paint None of the above