Final answer:
The statement that is true for bile is D) all the above, as bile is under hormonal and neural regulations, produced by the liver, and stored in the gallbladder.
Step-by-step explanation:
The correct answer to the question about bile is D) all the above. Bile production is indeed regulated hormonally and neurally, it is produced by the liver, and it is stored in the gallbladder. Hormones like cholecystokinin and secretin play an important role in the release of bile from the gallbladder into the small intestine, particularly after a meal rich in fats. The liver produces bile continuously, but its flow into the duodenum is increased when needed for digestion.
Between meals, bile is stored in the gallbladder where it is also concentrated. A lack of a gallbladder, as seen in those who have undergone a cholecystectomy, can lead to digestive difficulties, particularly after consuming fatty foods because of the absence of a reservoir for bile.