Final answer:
The habit of 'learning to eat all that is placed on your plate' contributes to obesity by promoting overeating. Combined with genetic predisposition and environmental factors, such as socioeconomic barriers to healthy living, these elements significantly contribute to the incidence of obesity.
Step-by-step explanation:
Among the choices provided, the key factor contributing to obesity is the habit of 'learning to eat all that is placed on your plate', which can lead to a consistent pattern of overeating.
Overeating, where more calories are consumed than expended, can lead to excess energy being stored as body fat. Obesity has multiple causes and is usually a result of various genetic and environmental factors. These might include a sedentary lifestyle, high calorie diets, socioeconomic status, and availability of healthy food options.
Genetic predisposition and environmental factors such as socioeconomic status and availability of physical activity opportunities may also play significant roles.
For example, people who live in neighborhoods with limited access to safe areas for exercise or healthful food options are more likely to have higher rates of obesity.
These environmental barriers, coupled with potentially inherited genetic tendencies towards weight gain, underscore the complexity of obesity as a health issue.