Which part of the human digestive system absorbs most nutrients?

This question examines a fundamental concept of human anatomy, physiology, health, nutrition, disease, or body regulation that frequently appears in SSC CGL General Science. The human body works through coordinated organ systems. The digestive system processes food and absorbs nutrients; the respiratory system exchanges oxygen and carbon dioxide; the circulatory system transports gases, nutrients, hormones, and wastes; the excretory system maintains water, salt, and acid–base balance; the nervous and endocrine systems coordinate responses; and the skeletal, muscular, immune, and reproductive systems perform specialised roles. Restate the question in your own words, predict the answer before checking the options, and confirm that the explanation and correct-option field both point to Small intestine.