A recent National Health and Nutrition Examination Survey (NHANES) study compared death rates for people with health insurance and people without health insurance. This study included anyone who completed the survey between 1986 and 1994. The study tracked these people through 2000. The study attempted to control for factors such as education, income, smoking, drinking, and obesity. The American Journal of Public Health published an article about this NHANES study. The following headlines appeared in the news based on this article. Which headline is an appropriate summary of this study?

a. Lack of insurance to blame for almost 45,000 deaths (ABC News)
b. 45,000 American deaths associated with lack of insurance (CNN)
c. No Health Insurance, Higher Death Risk: 45,000 U. S. Deaths Per Year May Be Linked to Lack of Health Insurance (WebMD)