Which of the Following Assertions About the Uninsured Is Incorrect

Which of the following assertions about the uninsured is incorrect?

A) Many of the uninsured cannot afford coverage.
B) Many of the uninsured are young and healthy individuals, for whom not having insurance is a rational economic decision.
C) Some of the uninsured are unable to obtain coverage because of a preexisting condition.
D) The number of the uninsured in the U.S. exceeds 30% of the population.
E) The percentage of the population without coverage depends significantly on the efforts of local and state governments.