Both undernutrition and diet-related obesity resulting from poor-quality, energy-dense diets in low-income populations are best classified as which of the following?

• A. Only undernutrition qualifies as malnutrition; obesity is solely a lifestyle choice and is not malnutrition.
• B. Only overnutrition qualifies as malnutrition because it involves excess calories rather than lack of food.
• C. Forms of malnutrition.
• D. Completely unrelated to food insecurity and therefore not nutritional problems.

Answer: (C)