Read the following statement having two blanks (A and B).
Chemical digestion of proteins begins in the __(A)__ and is completed in the __(B)__.
The one correct option for the two blanks is:

	A	B
1.	buccal cavity	intestine
2.	buccal cavity	stomach
3.	stomach	intestine
4.	intestine	intestine

Pepsin in the gastric juice, trypsinogen, chymotrypsinogen and carboxypeptidase of the pancreatic juice, and aminopeptidase and dipeptidase of the intestinal juice are involved in the digestion of proteins. Proteins are not digested in the buccal cavity. Digestion of proteins begins in the stomach and is completed in the small intestine. No significant digestive activity occurs in the large intestine.