Concept:Autotrophic nutrition is the mode of nutrition where organisms make their own food.Explanation:Autotrophs use simple inorganic substances like carbon dioxide and water.They obtain energy from sunlight or chemical reactions involving inorganic substances.This process produces organic food molecules such as glucose.Examples include green plants during photosynthesis.Therefore, the correct description matches organisms that produce their own food.Answer:D. Nutrition in which organisms produce their own food using energy from the sun or inorganic substances.