When more than 20% of the body weight is due to fat, the person is suffering from

Marasmus
Kwashiorkor
Scurvy
Obesity

The correct answer is D. Obesity.

Obesity is a condition in which a person has too much body fat. It is a major risk factor for many chronic diseases, including heart disease, stroke, type 2 diabetes, and some types of cancer.

Marasmus is a severe form of malnutrition that is characterized by a loss of muscle mass and body fat. It is most commonly seen in children who are not getting enough calories or nutrients.

Kwashiorkor is a form of malnutrition that is characterized by a lack of protein. It is most commonly seen in children who are not getting enough protein in their diet.

Scurvy is a disease that is caused by a lack of vitamin C. It is characterized by bleeding gums, loose teeth, and skin problems.

Obesity is a serious problem that can have a number of negative health consequences. If you are concerned about your weight, talk to your doctor about ways to lose weight safely and effectively.