Which group shows the highest levels of obesity?
a. low socioeconomic status
b. high levels of education
c. people who shop in regular supermarkets
d. individuals who live in colder climates

The correct answer is A.

People who come from a low socioeconomic status are at greater risk of developing obesity. This is because they cannot afford more nutritional food to eat or they do not have access to healthier food. Therefore the foods they eat tend to be of poor nutritional quality and this can contribute to obesity.

answer(b) keep oxygenated and deoxygenated blood separate;