1 - Trypsin - Pancreases.
2 - Pepsin - Stomach.
3 - Bile Juice - Liver.

Hence , option A) is correct answer.

The correct answer is option 'A', Trypsin.

The pancreas is an important organ located in the abdominal cavity, behind the stomach. It plays a vital role in digestion by producing and secreting several enzymes and hormones. One of the enzymes secreted by the pancreas is trypsin.

Let's understand why trypsin is the correct answer and why the other options are incorrect:

a) Trypsin:
Trypsin is an enzyme that belongs to a group of enzymes called proteases. It is secreted by the pancreas in an inactive form called trypsinogen, which is then activated in the small intestine. Trypsin plays a crucial role in breaking down proteins into smaller peptides and amino acids, which can be absorbed and utilized by the body.

b) Pepsin:
Pepsin is an enzyme that is secreted by the stomach, not the pancreas. It is involved in the initial breakdown of proteins in the stomach, where it converts them into smaller peptides. Pepsin works in an acidic environment, which is present in the stomach.

c) Bile juice:
Bile juice is not secreted by the pancreas but by the liver. The liver produces bile, which is stored in the gallbladder and released into the small intestine when needed. Bile helps in the emulsification and digestion of fats, but it is not an enzyme.

d) Both I and II:
This option is incorrect because pepsin is not secreted by the pancreas. As mentioned earlier, it is produced by the stomach.

In summary, the correct answer is option 'A', Trypsin. It is a pancreatic enzyme that plays a crucial role in the digestion of proteins.