The graph indicates the prevalence of obesity among children and adolescents in the United States from 2009 to 2010.

A graph titled Prevalence of Obesity Among Children and Adolescents shows genders on the horizontal axis and percent on the vertical axis. Obesity is lowest overall between ages 2 and 5. Obesity is highest in boys between ages 6 and 11 and highest in girls between ages 12 and 19.

Which inference can be made about this data?

A large difference in obesity diagnoses exists within the male group.
Healthy eating habits should be encouraged and implemented early in life.
Obesity is much higher in teenage girls than in teenage boys.
Teenagers have a minimal risk of developing obesity as they reach adulthood.