Which of the following statements about public health in the 21st century is true? group of answer choices
the greatest challenge is how to change human behavior to promote health
the prevalence of obesity is expected to decline because of healthier diets
violence and drug use are expected to decline because of stricter law enforcement it is expected that more people will become physically active

The greatest challenge is how to change human behavior to promote health.

Explanation:

With the invention of new technologies that made our lives easier and simpler, we have become lazier and have changed their diets, replacing healthy food for quick and not nourishing meals.  We dedicate more time to other activities where minimal movement is required. These habits have been forming since the last century along with new technologies and the changes in lifestyle. One of the greatest challenges is to change this unhealthy behavior and replace it for healthy habits throughout different plans, campaigns, and education.

i think the answer would be b.