Pancreatic juice is delivered to duodenum by the common bile duct. we can also called it as hepato pancreatic duct.

Pancreatic juice is delivered to the duodenum by the common bile duct (option B).

The pancreas is an important gland located in the abdominal cavity, just below the stomach. It plays a crucial role in the digestive system by producing and releasing pancreatic juice, which contains enzymes that help break down food and facilitate nutrient absorption.

Here is a detailed explanation of why the correct answer is the common bile duct:

1. Pancreatic Juice Production:
- The pancreas produces pancreatic juice, which contains various enzymes and bicarbonate ions.
- These enzymes include pancreatic amylase (for carbohydrate digestion), pancreatic lipase (for fat digestion), and several proteases (for protein digestion).

2. Pancreatic Duct:
- The pancreatic duct is a tube-like structure that runs through the pancreas and collects pancreatic juice from the different secretory cells.
- It is the main duct of the pancreas responsible for carrying pancreatic juice to the small intestine.

3. Common Bile Duct:
- The common bile duct is a duct formed by the union of the cystic duct (which carries bile from the gallbladder) and the common hepatic duct (which carries bile from the liver).
- The common bile duct carries bile, which is produced by the liver and stored in the gallbladder, to the small intestine (specifically, the duodenum).
- Bile is important for the digestion and absorption of fats.

4. Pancreatic Duct and Common Bile Duct Connection:
- Just before entering the duodenum, the common bile duct and the pancreatic duct merge to form a small opening called the hepatopancreatic ampulla (also known as the ampulla of Vater).
- This connection allows pancreatic juice and bile to mix together before entering the duodenum.
- The sphincter of Oddi, a circular muscle, controls the release of pancreatic juice and bile into the duodenum.

Therefore, the correct answer is option B, the common bile duct, as it is responsible for delivering pancreatic juice from the pancreas to the duodenum, where digestion and absorption of nutrients occur.