According to the text, U.S. children and adolescents experience various health and mortality problems.
Which of the following statements is false?

a. Less than 20% of adolescents meet current physical activity recommendations of 1
hour of physical activity a day
b. About 10% of youth do not have health care coverage
c. The percent of children born at low birth weight has increased
d. More police officers are killed by firearms than preschoolers