Answer:
(d) is primarily caused by Americans eating more and exercising less.
Step-by-step explanation:
More than 2,000 billion children and adults worldwide suffer from overweight or obesity and suffer from health problems because of it. This figure is equivalent to one-third of the world's population that is overweight. Therefore, the United States is not the only country that has had an increase in obesity (a).
Americans don't have time to prepare their lunches and dinners and choose to eat fast food or buy frozen foods, high in fat and carbohydrates. Without exercise, the propensity to gain weight is much greater (d). Because of the quality of food they eat, they consume a lot of calories and don´t eliminate them in any way, so they accumulate.
Obesity can cause diseases such as heart attacks, type 2 diabetes, cancer, hypertension, liver disease, apnea, high glucose, bone and joint issues (c).
Obesity has certainly affected children, also due to the bad example they receive from their parents, 17% of adolescents in the country are obese (b).