Final answer:
The liver, gallbladder, and pancreas are accessory organs of digestion that aid by providing bile and digestive enzymes. The large intestine is not an accessory organ as it mainly absorbs water and forms feces.optio d is correct.
Step-by-step explanation:
The accessory organs of digestion include the liver, gallbladder, and pancreas. These organs are not directly part of the alimentary canal but facilitate digestion through the secretion of necessary enzymes and substances like bile and pancreatic juice. The liver produces bile, which is important for emulsifying fats; the gallbladder stores and concentrates the bile; and the pancreas secretes digestive enzymes and bicarbonate ions into the small intestine.
In contrast, the large intestine is part of the digestive tract where water is absorbed and feces are formed but does not play a direct role in the secretion of digestive enzymes or substances. Therefore, the correct answer to which of these is NOT an accessory organ of digestion is D) large intestine.